18306965672016 has 160 divisors (see below), whose sum is σ = 57379503191040. Its totient is φ = 4909891811328.

The previous prime is 18306965672011. The next prime is 18306965672057. The reversal of 18306965672016 is 61027656960381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18306965672011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2063386 + ... + 6393081.

It is an arithmetic number, because the mean of its divisors is an integer number (358621894944).

Almost surely, 2^{18306965672016} is an apocalyptic number.

18306965672016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18306965672016 is an abundant number, since it is smaller than the sum of its proper divisors (39072537519024).

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

18306965672016 is a wasteful number, since it uses less digits than its factorization.

18306965672016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456881 (or 8456875 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 18306965672016 in words is "eighteen trillion, three hundred six billion, nine hundred sixty-five million, six hundred seventy-two thousand, sixteen".