18496657445056 has 56 divisors (see below), whose sum is σ = 41963390816256. Its totient is φ = 7924188207360.

The previous prime is 18496657445017. The next prime is 18496657445069. The reversal of 18496657445056 is 65054475669481.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6478990 + ... + 8886541.

It is an arithmetic number, because the mean of its divisors is an integer number (749346264576).

Almost surely, 2^{18496657445056} is an apocalyptic number.

18496657445056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18496657445056 is an abundant number, since it is smaller than the sum of its proper divisors (23466733371200).

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

18496657445056 is a wasteful number, since it uses less digits than its factorization.

18496657445056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368237 (or 15368227 counting only the distinct ones).

The product of its (nonzero) digits is 870912000, while the sum is 70.

The spelling of 18496657445056 in words is "eighteen trillion, four hundred ninety-six billion, six hundred fifty-seven million, four hundred forty-five thousand, fifty-six".