10557044660 has 24 divisors (see below), whose sum is σ = 22239743400. Its totient is φ = 4209494144.

The previous prime is 10557044633. The next prime is 10557044669. The reversal of 10557044660 is 6644075501.

It can be written as a sum of positive squares in 4 ways, for example, as 1238617636 + 9318427024 = 35194^2 + 96532^2 .

It is a super-2 number, since 2×10557044660² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10557044669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826235 + ... + 838914.

It is an arithmetic number, because the mean of its divisors is an integer number (926655975).

Almost surely, 2^10557044660 is an apocalyptic number.

10557044660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10557044660 is an abundant number, since it is smaller than the sum of its proper divisors (11682698740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10557044660 is a wasteful number, since it uses less digits than its factorization.

10557044660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665475 (or 1665473 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 10557044660 in words is "ten billion, five hundred fifty-seven million, forty-four thousand, six hundred sixty".