2656977874120 has 32 divisors (see below), whose sum is σ = 5978263044600. Its totient is φ = 1062779980288.

The previous prime is 2656977874073. The next prime is 2656977874123. The reversal of 2656977874120 is 214787796562.

It can be written as a sum of positive squares in 4 ways, for example, as 2580283218276 + 76694655844 = 1606326^2 + 276938^2 .

It is not an unprimeable number, because it can be changed into a prime (2656977874123) 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, 4254066 + ... + 4838494.

Almost surely, 2^{2656977874120} is an apocalyptic number.

2656977874120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2656977874120 is an abundant number, since it is smaller than the sum of its proper divisors (3321285170480).

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

2656977874120 is a wasteful number, since it uses less digits than its factorization.

2656977874120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698097 (or 698093 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 64.

The spelling of 2656977874120 in words is "two trillion, six hundred fifty-six billion, nine hundred seventy-seven million, eight hundred seventy-four thousand, one hundred twenty".