18673347145320 has 192 divisors, whose sum is σ = 69556883760000. Its totient is φ = 4255963651584.

The previous prime is 18673347145319. The next prime is 18673347145333. The reversal of 18673347145320 is 2354174337681.

18673347145320 is a `hidden beast` number, since 1 + 8 + 6 + 7 + 3 + 34 + 71 + 4 + 532 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9736650 + ... + 11495609.

It is an arithmetic number, because the mean of its divisors is an integer number (362275436250).

Almost surely, 2^{18673347145320} is an apocalyptic number.

18673347145320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18673347145320 is an abundant number, since it is smaller than the sum of its proper divisors (50883536614680).

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

18673347145320 is a wasteful number, since it uses less digits than its factorization.

18673347145320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21232632 (or 21232625 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 18673347145320 in words is "eighteen trillion, six hundred seventy-three billion, three hundred forty-seven million, one hundred forty-five thousand, three hundred twenty".