163268992 has 16 divisors (see below), whose sum is σ = 325262700. Its totient is φ = 81634432.

The previous prime is 163268977. The next prime is 163268993. The reversal of 163268992 is 299862361.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163268993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637642 + ... + 637897.

Almost surely, 2^163268992 is an apocalyptic number.

It is an amenable number.

163268992 is a deficient number, since it is larger than the sum of its proper divisors (161993708).

163268992 is an equidigital number, since it uses as much as digits as its factorization.

163268992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275553 (or 1275541 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 163268992 is about 12777.6755319581. The cubic root of 163268992 is about 546.5558794597. Note that the first 3 decimals are identical.

The spelling of 163268992 in words is "one hundred sixty-three million, two hundred sixty-eight thousand, nine hundred ninety-two".