256301666532 has 48 divisors (see below), whose sum is σ = 666368297280. Its totient is φ = 85191853824.

The previous prime is 256301666507. The next prime is 256301666549. The reversal of 256301666532 is 235666103652.

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, 3323298 + ... + 3399545.

It is an arithmetic number, because the mean of its divisors is an integer number (13882672860).

Almost surely, 2^256301666532 is an apocalyptic number.

It is an amenable number.

256301666532 is an abundant number, since it is smaller than the sum of its proper divisors (410066630748).

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

256301666532 is a wasteful number, since it uses less digits than its factorization.

256301666532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723209 (or 6723201 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 256301666532 in words is "two hundred fifty-six billion, three hundred one million, six hundred sixty-six thousand, five hundred thirty-two".