402532100656 has 160 divisors (see below), whose sum is σ = 938869015680. Its totient is φ = 163537920000.

The previous prime is 402532100611. The next prime is 402532100693. The reversal of 402532100656 is 656001235204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134131156 + ... + 134134156.

It is an arithmetic number, because the mean of its divisors is an integer number (5867931348).

Almost surely, 2^402532100656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402532100656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469434507840).

402532100656 is an abundant number, since it is smaller than the sum of its proper divisors (536336915024).

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

402532100656 is a wasteful number, since it uses less digits than its factorization.

402532100656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783 (or 3777 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 402532100656 in words is "four hundred two billion, five hundred thirty-two million, one hundred thousand, six hundred fifty-six".