163316655 has 24 divisors (see below), whose sum is σ = 293568912. Its totient is φ = 87101568.

The previous prime is 163316611. The next prime is 163316683. The reversal of 163316655 is 556613361.

163316655 is a `hidden beast` number, since 1 + 633 + 16 + 6 + 5 + 5 = 666.

It is not a de Polignac number, because 163316655 - 2⁹ = 163316143 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65994 + ... + 68423.

It is an arithmetic number, because the mean of its divisors is an integer number (12232038).

Almost surely, 2^163316655 is an apocalyptic number.

163316655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163316655 is a deficient number, since it is larger than the sum of its proper divisors (130252257).

163316655 is an equidigital number, since it uses as much as digits as its factorization.

163316655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134437 (or 134425 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 163316655 is about 12779.5404846966. The cubic root of 163316655 is about 546.6090595073.

The spelling of 163316655 in words is "one hundred sixty-three million, three hundred sixteen thousand, six hundred fifty-five".