258666666852 has 48 divisors (see below), whose sum is σ = 676219505472. Its totient is φ = 76265354880.

The previous prime is 258666666833. The next prime is 258666666901.

258666666852 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 26476143 + ... + 26485910.

It is an arithmetic number, because the mean of its divisors is an integer number (14087906364).

Almost surely, 2^258666666852 is an apocalyptic number.

258666666852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

258666666852 is an abundant number, since it is smaller than the sum of its proper divisors (417552838620).

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

258666666852 is a wasteful number, since it uses less digits than its factorization.

258666666852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52962108 (or 52962106 counting only the distinct ones).

The product of its digits is 298598400, while the sum is 66.

The spelling of 258666666852 in words is "two hundred fifty-eight billion, six hundred sixty-six million, six hundred sixty-six thousand, eight hundred fifty-two".