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61055500060001 = 193213447371579
BaseRepresentation
bin11011110000111100101110…
…11001001000010101100001
322000011211220202222010000002
431320132113121020111201
531000313131003410001
6333504302015505345
715601054131421526
oct1570362731102541
9260154822863002
1061055500060001
11184aa546085587
126a20b6b528255
13280b68021bb05
14111115db4114d
1570d2d899146b
hex378797648561

61055500060001 has 4 divisors (see below), whose sum is σ = 64268947431600. Its totient is φ = 57842052688404.

The previous prime is 61055500059997. The next prime is 61055500060007. The reversal of 61055500060001 is 10006000555016.

61055500060001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61055500060001 - 22 = 61055500059997 is a prime.

It is a super-3 number, since 3×610555000600013 (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61055500060007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1606723685771 + ... + 1606723685808.

It is an arithmetic number, because the mean of its divisors is an integer number (16067236857900).

Almost surely, 261055500060001 is an apocalyptic number.

It is an amenable number.

61055500060001 is a deficient number, since it is larger than the sum of its proper divisors (3213447371599).

61055500060001 is a wasteful number, since it uses less digits than its factorization.

61055500060001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213447371598.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 61055500060001 in words is "sixty-one trillion, fifty-five billion, five hundred million, sixty thousand, one".

Divisors: 1 19 3213447371579 61055500060001