163315550 has 24 divisors (see below), whose sum is σ = 304674696. Its totient is φ = 65131040.

The previous prime is 163315543. The next prime is 163315567. The reversal of 163315550 is 55513361.

163315550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12644 + ... + 22056.

It is an arithmetic number, because the mean of its divisors is an integer number (12694779).

Almost surely, 2^163315550 is an apocalyptic number.

163315550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163315550 is a deficient number, since it is larger than the sum of its proper divisors (141359146).

163315550 is a wasteful number, since it uses less digits than its factorization.

163315550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9772 (or 9767 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 163315550 is about 12779.4972514571. The cubic root of 163315550 is about 546.6078267195.

The spelling of 163315550 in words is "one hundred sixty-three million, three hundred fifteen thousand, five hundred fifty".