18204365633136 has 40 divisors (see below), whose sum is σ = 47029367261184. Its totient is φ = 6067938302400.

The previous prime is 18204365633123. The next prime is 18204365633137. The reversal of 18204365633136 is 63133656340281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18204365633137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4128906 + ... + 7311401.

Almost surely, 2^{18204365633136} is an apocalyptic number.

18204365633136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18204365633136 is an abundant number, since it is smaller than the sum of its proper divisors (28825001628048).

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

18204365633136 is a wasteful number, since it uses less digits than its factorization.

18204365633136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473469 (or 11473463 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 51.

The spelling of 18204365633136 in words is "eighteen trillion, two hundred four billion, three hundred sixty-five million, six hundred thirty-three thousand, one hundred thirty-six".