18880167072 has 48 divisors (see below), whose sum is σ = 53372783520. Its totient is φ = 5809281792.

The previous prime is 18880167043. The next prime is 18880167109. The reversal of 18880167072 is 27076108881.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 7562922 + ... + 7565417.

It is an arithmetic number, because the mean of its divisors is an integer number (1111932990).

Almost surely, 2^18880167072 is an apocalyptic number.

18880167072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18880167072 is an abundant number, since it is smaller than the sum of its proper divisors (34492616448).

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

18880167072 is a wasteful number, since it uses less digits than its factorization.

18880167072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15128365 (or 15128357 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 48.

The spelling of 18880167072 in words is "eighteen billion, eight hundred eighty million, one hundred sixty-seven thousand, seventy-two".