10557544775 has 12 divisors (see below), whose sum is σ = 13133190672. Its totient is φ = 8419045440.

The previous prime is 10557544759. The next prime is 10557544787. The reversal of 10557544775 is 57744575501.

It is a happy number.

It is not a de Polignac number, because 10557544775 - 2⁴ = 10557544759 is a prime.

It is a super-2 number, since 2×10557544775² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666779 + ... + 682428.

It is an arithmetic number, because the mean of its divisors is an integer number (1094432556).

Almost surely, 2^10557544775 is an apocalyptic number.

10557544775 is a deficient number, since it is larger than the sum of its proper divisors (2575645897).

10557544775 is a wasteful number, since it uses less digits than its factorization.

10557544775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349530 (or 1349525 counting only the distinct ones).

The product of its (nonzero) digits is 3430000, while the sum is 50.

The spelling of 10557544775 in words is "ten billion, five hundred fifty-seven million, five hundred forty-four thousand, seven hundred seventy-five".