258166164 has 24 divisors (see below), whose sum is σ = 602652960. Its totient is φ = 86017504.

The previous prime is 258166121. The next prime is 258166177. The reversal of 258166164 is 461661852.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42502 + ... + 48194.

It is an arithmetic number, because the mean of its divisors is an integer number (25110540).

Almost surely, 2^258166164 is an apocalyptic number.

It is an amenable number.

258166164 is an abundant number, since it is smaller than the sum of its proper divisors (344486796).

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

258166164 is a wasteful number, since it uses less digits than its factorization.

258166164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479 (or 9477 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 258166164 is about 16067.5500310408. The cubic root of 258166164 is about 636.7463154589.

The spelling of 258166164 in words is "two hundred fifty-eight million, one hundred sixty-six thousand, one hundred sixty-four".