163303965 has 64 divisors (see below), whose sum is σ = 318654720. Its totient is φ = 78693120.

The previous prime is 163303957. The next prime is 163304039. The reversal of 163303965 is 569303361.

It is not a de Polignac number, because 163303965 - 2³ = 163303957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 411147 + ... + 411543.

It is an arithmetic number, because the mean of its divisors is an integer number (4978980).

Almost surely, 2^163303965 is an apocalyptic number.

163303965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163303965 is a deficient number, since it is larger than the sum of its proper divisors (155350755).

163303965 is a wasteful number, since it uses less digits than its factorization.

163303965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 163303965 is about 12779.0439783264. The cubic root of 163303965 is about 546.5949016359.

The spelling of 163303965 in words is "one hundred sixty-three million, three hundred three thousand, nine hundred sixty-five".