163117668 has 36 divisors (see below), whose sum is σ = 442749552. Its totient is φ = 46604880.

The previous prime is 163117667. The next prime is 163117693. The reversal of 163117668 is 866711361.

It is a super-2 number, since 2×163117668² = 53214747227516448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163117667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138118 + ... + 139293.

Almost surely, 2^163117668 is an apocalyptic number.

It is an amenable number.

163117668 is an abundant number, since it is smaller than the sum of its proper divisors (279631884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163117668 is a wasteful number, since it uses less digits than its factorization.

163117668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277432 (or 277423 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 163117668 is about 12771.7527379761. The cubic root of 163117668 is about 546.3869709076.

The spelling of 163117668 in words is "one hundred sixty-three million, one hundred seventeen thousand, six hundred sixty-eight".