656601607480 has 64 divisors (see below), whose sum is σ = 1818281384640. Its totient is φ = 207803584512.

The previous prime is 656601607429. The next prime is 656601607513. The reversal of 656601607480 is 84706106656.

It is a super-2 number, since 2×656601607480² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 90188889 + ... + 90196168.

It is an arithmetic number, because the mean of its divisors is an integer number (28410646635).

Almost surely, 2^656601607480 is an apocalyptic number.

It is an amenable number.

656601607480 is an abundant number, since it is smaller than the sum of its proper divisors (1161679777160).

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

656601607480 is a wasteful number, since it uses less digits than its factorization.

656601607480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180385088 (or 180385084 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 656601607480 in words is "six hundred fifty-six billion, six hundred one million, six hundred seven thousand, four hundred eighty".