18552321366480 has 480 divisors, whose sum is σ = 69744384073728. Its totient is φ = 4380959923200.

The previous prime is 18552321366479. The next prime is 18552321366493. The reversal of 18552321366480 is 8466312325581.

18552321366480 is a `hidden beast` number, since 1 + 8 + 5 + 5 + 23 + 2 + 136 + 6 + 480 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78424537 + ... + 78660743.

Almost surely, 2^{18552321366480} is an apocalyptic number.

18552321366480 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 18552321366480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34872192036864).

18552321366480 is an abundant number, since it is smaller than the sum of its proper divisors (51192062707248).

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

18552321366480 is a wasteful number, since it uses less digits than its factorization.

18552321366480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236495 (or 236486 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 18552321366480 in words is "eighteen trillion, five hundred fifty-two billion, three hundred twenty-one million, three hundred sixty-six thousand, four hundred eighty".