18055504735632 has 1680 divisors, whose sum is σ = 69506122454400. Its totient is φ = 4433380024320.

The previous prime is 18055504735607. The next prime is 18055504735657. The reversal of 18055504735632 is 23653740555081.

18055504735632 is a `hidden beast` number, since 1 + 8 + 0 + 5 + 5 + 5 + 0 + 4 + 73 + 563 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18055504735607) and next prime (18055504735657).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 15992474844 + ... + 15992475972.

Almost surely, 2^{18055504735632} is an apocalyptic number.

18055504735632 is a gapful number since it is divisible by the number (12) 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 18055504735632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34753061227200).

18055504735632 is an abundant number, since it is smaller than the sum of its proper divisors (51450617718768).

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

18055504735632 is a wasteful number, since it uses less digits than its factorization.

18055504735632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 54.

The spelling of 18055504735632 in words is "eighteen trillion, fifty-five billion, five hundred four million, seven hundred thirty-five thousand, six hundred thirty-two".