163982965 has 16 divisors (see below), whose sum is σ = 204624000. Its totient is φ = 126004032.

The previous prime is 163982911. The next prime is 163982971. The reversal of 163982965 is 569289361.

It is a cyclic number.

It is not a de Polignac number, because 163982965 - 2¹³ = 163974773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26014 + ... + 31696.

It is an arithmetic number, because the mean of its divisors is an integer number (12789000).

Almost surely, 2^163982965 is an apocalyptic number.

It is an amenable number.

163982965 is a deficient number, since it is larger than the sum of its proper divisors (40641035).

163982965 is a wasteful number, since it uses less digits than its factorization.

163982965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916.

The product of its digits is 699840, while the sum is 49.

The square root of 163982965 is about 12805.5833525849. The cubic root of 163982965 is about 547.3514146809.

The spelling of 163982965 in words is "one hundred sixty-three million, nine hundred eighty-two thousand, nine hundred sixty-five".