164900690 has 16 divisors (see below), whose sum is σ = 301688280. Its totient is φ = 64878720.

The previous prime is 164900683. The next prime is 164900717. The reversal of 164900690 is 96009461.

164900690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 58171129 + 106729561 = 7627^2 + 10331^2 .

It is a super-2 number, since 2×164900690² = 54384475124952200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164900690.

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, 134555 + ... + 135774.

Almost surely, 2^164900690 is an apocalyptic number.

164900690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164900690 is a deficient number, since it is larger than the sum of its proper divisors (136787590).

164900690 is a wasteful number, since it uses less digits than its factorization.

164900690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270397.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 164900690 is about 12841.3663603216. The cubic root of 164900690 is about 548.3705935351.

The spelling of 164900690 in words is "one hundred sixty-four million, nine hundred thousand, six hundred ninety".