163340456 has 16 divisors (see below), whose sum is σ = 307581300. Its totient is φ = 81318784.

The previous prime is 163340447. The next prime is 163340477. The reversal of 163340456 is 654043361.

It can be written as a sum of positive squares in 2 ways, for example, as 130736356 + 32604100 = 11434^2 + 5710^2 .

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, 41951 + ... + 45678.

Almost surely, 2^163340456 is an apocalyptic number.

It is an amenable number.

163340456 is a deficient number, since it is larger than the sum of its proper divisors (144240844).

163340456 is a wasteful number, since it uses less digits than its factorization.

163340456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87868 (or 87864 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 163340456 is about 12780.4716657876. The cubic root of 163340456 is about 546.6356116274.

The spelling of 163340456 in words is "one hundred sixty-three million, three hundred forty thousand, four hundred fifty-six".