164941564 has 12 divisors (see below), whose sum is σ = 291891600. Its totient is φ = 81543968.

The previous prime is 164941559. The next prime is 164941571. The reversal of 164941564 is 465149461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231304 + ... + 232015.

It is an arithmetic number, because the mean of its divisors is an integer number (24324300).

Almost surely, 2^164941564 is an apocalyptic number.

It is an amenable number.

164941564 is a deficient number, since it is larger than the sum of its proper divisors (126950036).

164941564 is a wasteful number, since it uses less digits than its factorization.

164941564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463412 (or 463410 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 164941564 is about 12842.9577590211. The cubic root of 164941564 is about 548.4158980715.

The spelling of 164941564 in words is "one hundred sixty-four million, nine hundred forty-one thousand, five hundred sixty-four".