10556505572577 has 16 divisors (see below), whose sum is σ = 14478237211200. Its totient is φ = 6836813785152.

The previous prime is 10556505572533. The next prime is 10556505572659. The reversal of 10556505572577 is 77527550565501.

It is a happy number.

It is not a de Polignac number, because 10556505572577 - 2⁷ = 10556505572449 is a prime.

It is a super-2 number, since 2×10556505572577² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10556505572577.

It is not an unprimeable number, because it can be changed into a prime (10556505572077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73881702 + ... + 74024447.

It is an arithmetic number, because the mean of its divisors is an integer number (904889825700).

Almost surely, 2^{10556505572577} is an apocalyptic number.

It is an amenable number.

10556505572577 is a deficient number, since it is larger than the sum of its proper divisors (3921731638623).

10556505572577 is a wasteful number, since it uses less digits than its factorization.

10556505572577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147906832.

The product of its (nonzero) digits is 64312500, while the sum is 60.

The spelling of 10556505572577 in words is "ten trillion, five hundred fifty-six billion, five hundred five million, five hundred seventy-two thousand, five hundred seventy-seven".