18099954084168 has 64 divisors (see below), whose sum is σ = 54848345716800. Its totient is φ = 5484834570240.

The previous prime is 18099954084109. The next prime is 18099954084181. The reversal of 18099954084168 is 86148045999081.

18099954084168 is a `hidden beast` number, since 1 + 8 + 0 + 99 + 95 + 408 + 41 + 6 + 8 = 666.

It is a super-4 number, since 4×18099954084168⁴ (a number of 54 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 18099954084096 and 18099954084105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3808910521 + ... + 3808915272.

It is an arithmetic number, because the mean of its divisors is an integer number (857005401825).

Almost surely, 2^{18099954084168} is an apocalyptic number.

18099954084168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18099954084168 is an abundant number, since it is smaller than the sum of its proper divisors (36748391632632).

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

18099954084168 is a wasteful number, since it uses less digits than its factorization.

18099954084168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617825819 (or 7617825809 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 72.

The spelling of 18099954084168 in words is "eighteen trillion, ninety-nine billion, nine hundred fifty-four million, eighty-four thousand, one hundred sixty-eight".