16668338340704 has 24 divisors (see below), whose sum is σ = 32818111300800. Its totient is φ = 8333579915136.

The previous prime is 16668338340691. The next prime is 16668338340713. The reversal of 16668338340704 is 40704383386661.

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, 17954384 + ... + 18859919.

It is an arithmetic number, because the mean of its divisors is an integer number (1367421304200).

Almost surely, 2^{16668338340704} is an apocalyptic number.

It is an amenable number.

16668338340704 is a deficient number, since it is larger than the sum of its proper divisors (16149772960096).

16668338340704 is a wasteful number, since it uses less digits than its factorization.

16668338340704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36828462 (or 36828454 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 59.

The spelling of 16668338340704 in words is "sixteen trillion, six hundred sixty-eight billion, three hundred thirty-eight million, three hundred forty thousand, seven hundred four".