18046818151656 has 128 divisors (see below), whose sum is σ = 52820284047360. Its totient is φ = 5031770284800.

The previous prime is 18046818151631. The next prime is 18046818151759. The reversal of 18046818151656 is 65615181864081.

It is a self number, because there is not a number n which added to its sum of digits gives 18046818151656.

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 31 ways as a sum of consecutive naturals, for example, 5631610 + ... + 8234601.

It is an arithmetic number, because the mean of its divisors is an integer number (412658469120).

Almost surely, 2^{18046818151656} is an apocalyptic number.

It is an amenable number.

18046818151656 is an abundant number, since it is smaller than the sum of its proper divisors (34773465895704).

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

18046818151656 is a wasteful number, since it uses less digits than its factorization.

18046818151656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13866415 (or 13866411 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 60.

The spelling of 18046818151656 in words is "eighteen trillion, forty-six billion, eight hundred eighteen million, one hundred fifty-one thousand, six hundred fifty-six".