656104332576 has 384 divisors, whose sum is σ = 2170123038720. Its totient is φ = 170013634560.

The previous prime is 656104332571. The next prime is 656104332617. The reversal of 656104332576 is 675233401656.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (656104332571) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 650251560 + ... + 650252568.

It is an arithmetic number, because the mean of its divisors is an integer number (5651362080).

Almost surely, 2^656104332576 is an apocalyptic number.

656104332576 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656104332576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085061519360).

656104332576 is an abundant number, since it is smaller than the sum of its proper divisors (1514018706144).

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

656104332576 is a wasteful number, since it uses less digits than its factorization.

656104332576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 656104332576 in words is "six hundred fifty-six billion, one hundred four million, three hundred thirty-two thousand, five hundred seventy-six".