80658864 has 120 divisors (see below), whose sum is σ = 265264272. Its totient is φ = 22556160.

The previous prime is 80658833. The next prime is 80658871. The reversal of 80658864 is 46885608.

80658864 is a `hidden beast` number, since 8 + 0 + 6 + 588 + 64 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18634 + ... + 22550.

Almost surely, 2^80658864 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 80658864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132632136).

80658864 is an abundant number, since it is smaller than the sum of its proper divisors (184605408).

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

80658864 is a wasteful number, since it uses less digits than its factorization.

80658864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955 (or 3946 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 80658864 is about 8981.0280035194. The cubic root of 80658864 is about 432.0666049568.

The spelling of 80658864 in words is "eighty million, six hundred fifty-eight thousand, eight hundred sixty-four".