163742880 has 96 divisors (see below), whose sum is σ = 589486464. Its totient is φ = 37426176.

The previous prime is 163742867. The next prime is 163742881. The reversal of 163742880 is 88247361.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (163742881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21007 + ... + 27726.

It is an arithmetic number, because the mean of its divisors is an integer number (6140484).

Almost surely, 2^163742880 is an apocalyptic number.

163742880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163742880 is an abundant number, since it is smaller than the sum of its proper divisors (425743584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163742880 is a wasteful number, since it uses less digits than its factorization.

163742880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758 (or 48750 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 163742880 is about 12796.2056876247. The cubic root of 163742880 is about 547.0841612118.

The spelling of 163742880 in words is "one hundred sixty-three million, seven hundred forty-two thousand, eight hundred eighty".