163272644 has 12 divisors (see below), whose sum is σ = 287082768. Its totient is φ = 81249000.

The previous prime is 163272617. The next prime is 163272671. The reversal of 163272644 is 446272361.

It is an interprime number because it is at equal distance from previous prime (163272617) and next prime (163272671).

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, 95882 + ... + 97569.

It is an arithmetic number, because the mean of its divisors is an integer number (23923564).

Almost surely, 2^163272644 is an apocalyptic number.

It is an amenable number.

163272644 is a deficient number, since it is larger than the sum of its proper divisors (123810124).

163272644 is a wasteful number, since it uses less digits than its factorization.

163272644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193666 (or 193664 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 163272644 is about 12777.8184366503. The cubic root of 163272644 is about 546.5599545490.

The spelling of 163272644 in words is "one hundred sixty-three million, two hundred seventy-two thousand, six hundred forty-four".