22158704164 has 27 divisors (see below), whose sum is σ = 39063769563. Its totient is φ = 10998224472.

The previous prime is 22158704147. The next prime is 22158704173. The reversal of 22158704164 is 46140785122.

The square root of 22158704164 is 148858.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 78299167 + ... + 78299449.

Almost surely, 2^22158704164 is an apocalyptic number.

22158704164 is the 148858-th square number.

It is an amenable number.

22158704164 is a deficient number, since it is larger than the sum of its proper divisors (16905065399).

22158704164 is an frugal number, since it uses more digits than its factorization.

22158704164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 22158704164 in words is "twenty-two billion, one hundred fifty-eight million, seven hundred four thousand, one hundred sixty-four".