18366868333542 has 16 divisors (see below), whose sum is σ = 36737068053312. Its totient is φ = 6121734213480.

The previous prime is 18366868333537. The next prime is 18366868333601. The reversal of 18366868333542 is 24533386866381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138736084 + ... + 138868407.

It is an arithmetic number, because the mean of its divisors is an integer number (2296066753332).

Almost surely, 2^{18366868333542} is an apocalyptic number.

18366868333542 is an abundant number, since it is smaller than the sum of its proper divisors (18370199719770).

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

18366868333542 is a wasteful number, since it uses less digits than its factorization.

18366868333542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277615523.

The product of its digits is 358318080, while the sum is 66.

The spelling of 18366868333542 in words is "eighteen trillion, three hundred sixty-six billion, eight hundred sixty-eight million, three hundred thirty-three thousand, five hundred forty-two".