18992332800000 has 1656 divisors, whose sum is σ = 81783683759232. Its totient is φ = 4152360960000.

The previous prime is 18992332799933. The next prime is 18992332800019. The reversal of 18992332800000 is 823329981.

It is a tau number, because it is divible by the number of its divisors (1656).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 825753599989 + ... + 825753600011.

Almost surely, 2^{18992332800000} is an apocalyptic number.

18992332800000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18992332800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40891841879616).

18992332800000 is an abundant number, since it is smaller than the sum of its proper divisors (62791350959232).

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

18992332800000 is an frugal number, since it uses more digits than its factorization.

18992332800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 18992332800000 in words is "eighteen trillion, nine hundred ninety-two billion, three hundred thirty-two million, eight hundred thousand".