163553930 has 16 divisors (see below), whose sum is σ = 294744960. Its totient is φ = 65344272.

The previous prime is 163553899. The next prime is 163553941. The reversal of 163553930 is 39355361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 18089.

It is an arithmetic number, because the mean of its divisors is an integer number (18421560).

Almost surely, 2^163553930 is an apocalyptic number.

163553930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163553930 is a deficient number, since it is larger than the sum of its proper divisors (131191030).

163553930 is a wasteful number, since it uses less digits than its factorization.

163553930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19333.

The product of its (nonzero) digits is 36450, while the sum is 35.

The square root of 163553930 is about 12788.8205085536. The cubic root of 163553930 is about 546.8736455150.

The spelling of 163553930 in words is "one hundred sixty-three million, five hundred fifty-three thousand, nine hundred thirty".