16668118337744 has 20 divisors (see below), whose sum is σ = 32294554385280. Its totient is φ = 8334039786720.

The previous prime is 16668118337737. The next prime is 16668118337771. The reversal of 16668118337744 is 44773381186661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8010977 + ... + 9874815.

It is an arithmetic number, because the mean of its divisors is an integer number (1614727719264).

Almost surely, 2^{16668118337744} is an apocalyptic number.

It is an amenable number.

16668118337744 is a deficient number, since it is larger than the sum of its proper divisors (15626436047536).

16668118337744 is a wasteful number, since it uses less digits than its factorization.

16668118337744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422778 (or 2422772 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 65.

The spelling of 16668118337744 in words is "sixteen trillion, six hundred sixty-eight billion, one hundred eighteen million, three hundred thirty-seven thousand, seven hundred forty-four".