16668550572940 has 48 divisors (see below), whose sum is σ = 40021239488832. Its totient is φ = 5712543323136.

The previous prime is 16668550572937. The next prime is 16668550572983. The reversal of 16668550572940 is 4927505586661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24541929 + ... + 25211968.

It is an arithmetic number, because the mean of its divisors is an integer number (833775822684).

Almost surely, 2^{16668550572940} is an apocalyptic number.

16668550572940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16668550572940 is an abundant number, since it is smaller than the sum of its proper divisors (23352688915892).

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

16668550572940 is a wasteful number, since it uses less digits than its factorization.

16668550572940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49756306 (or 49756304 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 64.

The spelling of 16668550572940 in words is "sixteen trillion, six hundred sixty-eight billion, five hundred fifty million, five hundred seventy-two thousand, nine hundred forty".