164253644 has 12 divisors (see below), whose sum is σ = 288018864. Its totient is φ = 81962544.

The previous prime is 164253641. The next prime is 164253671. The reversal of 164253644 is 446352461.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (164253641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38807 + ... + 42830.

It is an arithmetic number, because the mean of its divisors is an integer number (24001572).

Almost surely, 2^164253644 is an apocalyptic number.

It is an amenable number.

164253644 is a deficient number, since it is larger than the sum of its proper divisors (123765220).

164253644 is a wasteful number, since it uses less digits than its factorization.

164253644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82144 (or 82142 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 164253644 is about 12816.1477831679. The cubic root of 164253644 is about 547.6524115759.

The spelling of 164253644 in words is "one hundred sixty-four million, two hundred fifty-three thousand, six hundred forty-four".