164067664 has 20 divisors (see below), whose sum is σ = 319723956. Its totient is φ = 81558272.

The previous prime is 164067653. The next prime is 164067689. The reversal of 164067664 is 466760461.

It is a happy number.

164067664 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 2 ways, for example, as 123210000 + 40857664 = 11100^2 + 6392^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26869 + ... + 32404.

Almost surely, 2^164067664 is an apocalyptic number.

It is an amenable number.

164067664 is a deficient number, since it is larger than the sum of its proper divisors (155656292).

164067664 is a wasteful number, since it uses less digits than its factorization.

164067664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59454 (or 59448 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 164067664 is about 12808.8900377824. The cubic root of 164067664 is about 547.4456361303.

The spelling of 164067664 in words is "one hundred sixty-four million, sixty-seven thousand, six hundred sixty-four".