655974134540 has 24 divisors (see below), whose sum is σ = 1377570100032. Its totient is φ = 262385002880.

The previous prime is 655974134537. The next prime is 655974134567. The reversal of 655974134540 is 45431479556.

655974134540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007192 + ... + 1525248.

It is an arithmetic number, because the mean of its divisors is an integer number (57398754168).

Almost surely, 2^655974134540 is an apocalyptic number.

It is an amenable number.

655974134540 is an abundant number, since it is smaller than the sum of its proper divisors (721595965492).

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

655974134540 is a wasteful number, since it uses less digits than its factorization.

655974134540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581377 (or 581375 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 655974134540 in words is "six hundred fifty-five billion, nine hundred seventy-four million, one hundred thirty-four thousand, five hundred forty".