870161580 has 36 divisors (see below), whose sum is σ = 2639490672. Its totient is φ = 232043040.

The previous prime is 870161569. The next prime is 870161603. The reversal of 870161580 is 85161078.

870161580 is a `hidden beast` number, since 8 + 70 + 1 + 6 + 1 + 580 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 2416936 + ... + 2417295.

Almost surely, 2^870161580 is an apocalyptic number.

It is an amenable number.

870161580 is an abundant number, since it is smaller than the sum of its proper divisors (1769329092).

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

870161580 is a wasteful number, since it uses less digits than its factorization.

870161580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834246 (or 4834241 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 870161580 is about 29498.5013178636. The cubic root of 870161580 is about 954.6993671914.

The spelling of 870161580 in words is "eight hundred seventy million, one hundred sixty-one thousand, five hundred eighty".