164775590 has 32 divisors (see below), whose sum is σ = 340213824. Its totient is φ = 56286720.

The previous prime is 164775563. The next prime is 164775601. The reversal of 164775590 is 95577461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15482 + ... + 23858.

It is an arithmetic number, because the mean of its divisors is an integer number (10631682).

Almost surely, 2^164775590 is an apocalyptic number.

164775590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164775590 is an abundant number, since it is smaller than the sum of its proper divisors (175438234).

164775590 is a wasteful number, since it uses less digits than its factorization.

164775590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8672.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 164775590 is about 12836.4944591582. The cubic root of 164775590 is about 548.2318867850.

The spelling of 164775590 in words is "one hundred sixty-four million, seven hundred seventy-five thousand, five hundred ninety".