656034134540 has 48 divisors (see below), whose sum is σ = 1412967043488. Its totient is φ = 255718923264.

The previous prime is 656034134527. The next prime is 656034134579. The reversal of 656034134540 is 45431430656.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508487 + ... + 1253246.

It is an arithmetic number, because the mean of its divisors is an integer number (29436813406).

Almost surely, 2^656034134540 is an apocalyptic number.

It is an amenable number.

656034134540 is an abundant number, since it is smaller than the sum of its proper divisors (756932908948).

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

656034134540 is a wasteful number, since it uses less digits than its factorization.

656034134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762218 (or 1762216 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 656034134540 in words is "six hundred fifty-six billion, thirty-four million, one hundred thirty-four thousand, five hundred forty".