18838866055600 has 30 divisors (see below), whose sum is σ = 45260375699540. Its totient is φ = 7535546422080.

The previous prime is 18838866055553. The next prime is 18838866055627. The reversal of 18838866055600 is 655066883881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23548582170 + ... + 23548582969.

Almost surely, 2^{18838866055600} is an apocalyptic number.

18838866055600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18838866055600 is an abundant number, since it is smaller than the sum of its proper divisors (26421509643940).

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

18838866055600 is a wasteful number, since it uses less digits than its factorization.

18838866055600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47097165157 (or 47097165146 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 64.

The spelling of 18838866055600 in words is "eighteen trillion, eight hundred thirty-eight billion, eight hundred sixty-six million, fifty-five thousand, six hundred".