258664984960 has 64 divisors (see below), whose sum is σ = 639694162800. Its totient is φ = 99898193920.

The previous prime is 258664984909. The next prime is 258664984961. The reversal of 258664984960 is 69489466852.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258664984961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6949786 + ... + 6986905.

Almost surely, 2^258664984960 is an apocalyptic number.

258664984960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258664984960 is an abundant number, since it is smaller than the sum of its proper divisors (381029177840).

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

258664984960 is a wasteful number, since it uses less digits than its factorization.

258664984960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13936739 (or 13936727 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 67.

The spelling of 258664984960 in words is "two hundred fifty-eight billion, six hundred sixty-four million, nine hundred eighty-four thousand, nine hundred sixty".