163860656 has 20 divisors (see below), whose sum is σ = 320450472. Its totient is φ = 81163776.

The previous prime is 163860647. The next prime is 163860661. The reversal of 163860656 is 656068361.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 46145 + ... + 49568.

Almost surely, 2^163860656 is an apocalyptic number.

163860656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163860656 is a deficient number, since it is larger than the sum of its proper divisors (156589816).

163860656 is a wasteful number, since it uses less digits than its factorization.

163860656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95828 (or 95822 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 163860656 is about 12800.8068495701. The cubic root of 163860656 is about 547.2152975843.

The spelling of 163860656 in words is "one hundred sixty-three million, eight hundred sixty thousand, six hundred fifty-six".