18190138222080 has 800 divisors, whose sum is σ = 71125038420480. Its totient is φ = 4406575841280.

The previous prime is 18190138222073. The next prime is 18190138222111. The reversal of 18190138222080 is 8022283109181.

18190138222080 is a `hidden beast` number, since 1 + 8 + 190 + 1 + 382 + 2 + 2 + 0 + 80 = 666.

It is a super-2 number, since 2×18190138222080² (a number of 27 digits) contains 22 as substring.

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 79 ways as a sum of consecutive naturals, for example, 5581507491 + ... + 5581510749.

Almost surely, 2^{18190138222080} is an apocalyptic number.

18190138222080 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 18190138222080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35562519210240).

18190138222080 is an abundant number, since it is smaller than the sum of its proper divisors (52934900198400).

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

18190138222080 is a wasteful number, since it uses less digits than its factorization.

18190138222080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752 (or 5727 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 18190138222080 in words is "eighteen trillion, one hundred ninety billion, one hundred thirty-eight million, two hundred twenty-two thousand, eighty".