163870564 has 24 divisors (see below), whose sum is σ = 336909888. Its totient is φ = 68756640.

The previous prime is 163870559. The next prime is 163870579. The reversal of 163870564 is 465078361.

It is a happy number.

163870564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 142672 + ... + 143815.

It is an arithmetic number, because the mean of its divisors is an integer number (14037912).

Almost surely, 2^163870564 is an apocalyptic number.

It is an amenable number.

163870564 is an abundant number, since it is smaller than the sum of its proper divisors (173039324).

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

163870564 is a wasteful number, since it uses less digits than its factorization.

163870564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286515 (or 286513 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 163870564 is about 12801.1938505750. The cubic root of 163870564 is about 547.2263266704.

The spelling of 163870564 in words is "one hundred sixty-three million, eight hundred seventy thousand, five hundred sixty-four".