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10655556161 = 64316571627
BaseRepresentation
bin10011110110001111…
…01110001001000001
31000111121022100010012
421323013232021001
5133310310244121
64521201314305
7525024506255
oct117307561101
930447270105
1010655556161
114578869068
122094635995
13100a768423
1473124c265
15425701c5b
hex27b1ee241

10655556161 has 4 divisors (see below), whose sum is σ = 10672128432. Its totient is φ = 10638983892.

The previous prime is 10655556151. The next prime is 10655556187. The reversal of 10655556161 is 16165555601.

10655556161 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, and also an emirpimes, since its reverse is a distinct semiprime: 16165555601 = 131243504277.

It is a cyclic number.

It is not a de Polignac number, because 10655556161 - 26 = 10655556097 is a prime.

It is a super-2 number, since 2×106555561612 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10655556151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8285171 + ... + 8286456.

It is an arithmetic number, because the mean of its divisors is an integer number (2668032108).

Almost surely, 210655556161 is an apocalyptic number.

It is an amenable number.

10655556161 is a deficient number, since it is larger than the sum of its proper divisors (16572271).

10655556161 is an equidigital number, since it uses as much as digits as its factorization.

10655556161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16572270.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 10655556161 in words is "ten billion, six hundred fifty-five million, five hundred fifty-six thousand, one hundred sixty-one".

Divisors: 1 643 16571627 10655556161