255600664 has 64 divisors (see below), whose sum is σ = 552614400. Its totient is φ = 109737600.

The previous prime is 255600659. The next prime is 255600707. The reversal of 255600664 is 466006552.

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, 118879 + ... + 121009.

It is an arithmetic number, because the mean of its divisors is an integer number (8634600).

Almost surely, 2^255600664 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 255600664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276307200).

255600664 is an abundant number, since it is smaller than the sum of its proper divisors (297013736).

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

255600664 is a wasteful number, since it uses less digits than its factorization.

255600664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224 (or 2220 counting only the distinct ones).

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

The square root of 255600664 is about 15987.5158795855. The cubic root of 255600664 is about 634.6300893894.

The spelling of 255600664 in words is "two hundred fifty-five million, six hundred thousand, six hundred sixty-four".