656535024552 has 64 divisors (see below), whose sum is σ = 1795060555200. Its totient is φ = 198448842240.

The previous prime is 656535024499. The next prime is 656535024583. The reversal of 656535024552 is 255420535656.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3027277 + ... + 3236892.

It is an arithmetic number, because the mean of its divisors is an integer number (28047821175).

Almost surely, 2^656535024552 is an apocalyptic number.

It is an amenable number.

656535024552 is an abundant number, since it is smaller than the sum of its proper divisors (1138525530648).

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

656535024552 is a wasteful number, since it uses less digits than its factorization.

656535024552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6264586 (or 6264582 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 48.

Subtracting from 656535024552 its reverse (255420535656), we obtain a square (401114488896 = 633336²).

The spelling of 656535024552 in words is "six hundred fifty-six billion, five hundred thirty-five million, twenty-four thousand, five hundred fifty-two".