18346381640136 has 96 divisors (see below), whose sum is σ = 57393760788000. Its totient is φ = 5232479608320.

The previous prime is 18346381640123. The next prime is 18346381640143. The reversal of 18346381640136 is 63104618364381.

18346381640136 is a `hidden beast` number, since 1 + 8 + 3 + 463 + 8 + 1 + 6 + 40 + 136 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681298986 + ... + 681325913.

It is an arithmetic number, because the mean of its divisors is an integer number (597851674875).

Almost surely, 2^{18346381640136} is an apocalyptic number.

It is an amenable number.

18346381640136 is an abundant number, since it is smaller than the sum of its proper divisors (39047379147864).

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

18346381640136 is a wasteful number, since it uses less digits than its factorization.

18346381640136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362624939 (or 1362624932 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 18346381640136 in words is "eighteen trillion, three hundred forty-six billion, three hundred eighty-one million, six hundred forty thousand, one hundred thirty-six".