18335168516664 has 160 divisors (see below), whose sum is σ = 52467145315200. Its totient is φ = 5980630075200.

The previous prime is 18335168516617. The next prime is 18335168516677. The reversal of 18335168516664 is 46661586153381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5157427 + ... + 7954205.

It is an arithmetic number, because the mean of its divisors is an integer number (327919658220).

Almost surely, 2^{18335168516664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18335168516664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26233572657600).

18335168516664 is an abundant number, since it is smaller than the sum of its proper divisors (34131976798536).

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

18335168516664 is a wasteful number, since it uses less digits than its factorization.

18335168516664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797015 (or 2797002 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 18335168516664 in words is "eighteen trillion, three hundred thirty-five billion, one hundred sixty-eight million, five hundred sixteen thousand, six hundred sixty-four".