1010555605501 has 4 divisors (see below), whose sum is σ = 1088290652092. Its totient is φ = 932820558912.

The previous prime is 1010555605487. The next prime is 1010555605517. The reversal of 1010555605501 is 1055065550101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 341716239225 + 668839366276 = 584565^2 + 817826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010555605501 - 2⁵ = 1010555605469 is a prime.

It is a super-2 number, since 2×1010555605501² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010555605201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38867523276 + ... + 38867523301.

It is an arithmetic number, because the mean of its divisors is an integer number (272072663023).

Almost surely, 2^{1010555605501} is an apocalyptic number.

It is an amenable number.

1010555605501 is a deficient number, since it is larger than the sum of its proper divisors (77735046591).

1010555605501 is an equidigital number, since it uses as much as digits as its factorization.

1010555605501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77735046590.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 1010555605501 in words is "one trillion, ten billion, five hundred fifty-five million, six hundred five thousand, five hundred one".