18340241296656 has 80 divisors (see below), whose sum is σ = 47679175569600. Its totient is φ = 6074714933760.

The previous prime is 18340241296649. The next prime is 18340241296669. The reversal of 18340241296656 is 65669214204381.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18340241296596 and 18340241296605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14428770 + ... + 15648318.

It is an arithmetic number, because the mean of its divisors is an integer number (595989694620).

Almost surely, 2^{18340241296656} is an apocalyptic number.

18340241296656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18340241296656 is an abundant number, since it is smaller than the sum of its proper divisors (29338934272944).

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

18340241296656 is a wasteful number, since it uses less digits than its factorization.

18340241296656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221544 (or 1221538 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 18340241296656 in words is "eighteen trillion, three hundred forty billion, two hundred forty-one million, two hundred ninety-six thousand, six hundred fifty-six".