164653690 has 32 divisors (see below), whose sum is σ = 306892800. Its totient is φ = 63563904.

The previous prime is 164653681. The next prime is 164653693. The reversal of 164653690 is 96356461.

164653690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×164653690² = 54221675261232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164653693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31911 + ... + 36709.

It is an arithmetic number, because the mean of its divisors is an integer number (9590400).

Almost surely, 2^164653690 is an apocalyptic number.

164653690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164653690 is a deficient number, since it is larger than the sum of its proper divisors (142239110).

164653690 is a wasteful number, since it uses less digits than its factorization.

164653690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 164653690 is about 12831.7453995939. The cubic root of 164653690 is about 548.0966605382.

The spelling of 164653690 in words is "one hundred sixty-four million, six hundred fifty-three thousand, six hundred ninety".