164645032 has 16 divisors (see below), whose sum is σ = 324957600. Its totient is φ = 77989680.

The previous prime is 164645011. The next prime is 164645059. The reversal of 164645032 is 230546461.

It is a junction number, because it is equal to n+sod(n) for n = 164644985 and 164645003.

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, 541444 + ... + 541747.

It is an arithmetic number, because the mean of its divisors is an integer number (20309850).

Almost surely, 2^164645032 is an apocalyptic number.

It is an amenable number.

164645032 is a deficient number, since it is larger than the sum of its proper divisors (160312568).

164645032 is a wasteful number, since it uses less digits than its factorization.

164645032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083216 (or 1083212 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 164645032 is about 12831.4080287395. The cubic root of 164645032 is about 548.0870534976.

The spelling of 164645032 in words is "one hundred sixty-four million, six hundred forty-five thousand, thirty-two".