656011499472 has 120 divisors (see below), whose sum is σ = 2098363225920. Its totient is φ = 187416875520.

The previous prime is 656011499467. The next prime is 656011499483. The reversal of 656011499472 is 274994110656.

656011499472 is a `hidden beast` number, since 6 + 56 + 0 + 114 + 9 + 9 + 472 = 666.

656011499472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21090972 + ... + 21122052.

It is an arithmetic number, because the mean of its divisors is an integer number (17486360216).

Almost surely, 2^656011499472 is an apocalyptic number.

It is an amenable number.

656011499472 is an abundant number, since it is smaller than the sum of its proper divisors (1442351726448).

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

656011499472 is a wasteful number, since it uses less digits than its factorization.

656011499472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52041 (or 52032 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 656011499472 in words is "six hundred fifty-six billion, eleven million, four hundred ninety-nine thousand, four hundred seventy-two".