18890060167800 has 72 divisors (see below), whose sum is σ = 63439118736240. Its totient is φ = 5037349377600.

The previous prime is 18890060167787. The next prime is 18890060167877. The reversal of 18890060167800 is 876106009881.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5247237136 + ... + 5247240735.

Almost surely, 2^{18890060167800} is an apocalyptic number.

18890060167800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18890060167800 is an abundant number, since it is smaller than the sum of its proper divisors (44549058568440).

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

18890060167800 is a wasteful number, since it uses less digits than its factorization.

18890060167800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10494477893 (or 10494477881 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 18890060167800 in words is "eighteen trillion, eight hundred ninety billion, sixty million, one hundred sixty-seven thousand, eight hundred".