18455416040880 has 1920 divisors, whose sum is σ = 80631395260416. Its totient is φ = 3819670732800.

The previous prime is 18455416040861. The next prime is 18455416040903. The reversal of 18455416040880 is 8804061455481.

18455416040880 is a `hidden beast` number, since 1 + 8 + 4 + 554 + 1 + 6 + 0 + 4 + 0 + 8 + 80 = 666.

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 383 ways as a sum of consecutive naturals, for example, 22479190870 + ... + 22479191690.

Almost surely, 2^{18455416040880} is an apocalyptic number.

18455416040880 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 18455416040880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40315697630208).

18455416040880 is an abundant number, since it is smaller than the sum of its proper divisors (62175979219536).

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

18455416040880 is a wasteful number, since it uses less digits than its factorization.

18455416040880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 54.

The spelling of 18455416040880 in words is "eighteen trillion, four hundred fifty-five billion, four hundred sixteen million, forty thousand, eight hundred eighty".