164145656 has 16 divisors (see below), whose sum is σ = 309989400. Its totient is φ = 81481824.

The previous prime is 164145649. The next prime is 164145671. The reversal of 164145656 is 656541461.

It is a happy number.

164145656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 72695 + ... + 74918.

Almost surely, 2^164145656 is an apocalyptic number.

It is an amenable number.

164145656 is a deficient number, since it is larger than the sum of its proper divisors (145843744).

164145656 is a wasteful number, since it uses less digits than its factorization.

164145656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147758 (or 147754 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 164145656 is about 12811.9341240891. The cubic root of 164145656 is about 547.5323678591.

The spelling of 164145656 in words is "one hundred sixty-four million, one hundred forty-five thousand, six hundred fifty-six".