64158912 has 112 divisors (see below), whose sum is σ = 190926720. Its totient is φ = 21125376.

The previous prime is 64158893. The next prime is 64158923. The reversal of 64158912 is 21985146.

64158912 is a `hidden beast` number, since 64 + 1 + 589 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 184723 + ... + 185069.

Almost surely, 2^64158912 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 64158912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95463360).

64158912 is an abundant number, since it is smaller than the sum of its proper divisors (126767808).

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

64158912 is a wasteful number, since it uses less digits than its factorization.

64158912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 459 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 64158912 is about 8009.9258423533. The cubic root of 64158912 is about 400.3307930312.

It can be divided in two parts, 641589 and 12, that added together give a square (641601 = 801²).

The spelling of 64158912 in words is "sixty-four million, one hundred fifty-eight thousand, nine hundred twelve".