258666250120 has 64 divisors (see below), whose sum is σ = 583759980720. Its totient is φ = 103153803264.

The previous prime is 258666250099. The next prime is 258666250133. The reversal of 258666250120 is 21052666852.

It can be written as a sum of positive squares in 8 ways, for example, as 35668855044 + 222997395076 = 188862^2 + 472226^2 .

It is a super-2 number, since 2×258666250120² (a number of 24 digits) contains 22 as substring.

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, 28694734 + ... + 28703746.

Almost surely, 2^258666250120 is an apocalyptic number.

258666250120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258666250120 is an abundant number, since it is smaller than the sum of its proper divisors (325093730600).

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

258666250120 is a wasteful number, since it uses less digits than its factorization.

258666250120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11114 (or 11110 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 258666250120 in words is "two hundred fifty-eight billion, six hundred sixty-six million, two hundred fifty thousand, one hundred twenty".