16668293040620 has 24 divisors (see below), whose sum is σ = 37695985800144. Its totient is φ = 6154446661056.

The previous prime is 16668293040617. The next prime is 16668293040629. The reversal of 16668293040620 is 2604039286661.

It is a super-2 number, since 2×16668293040620² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16668293040629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32054409434 + ... + 32054409953.

It is an arithmetic number, because the mean of its divisors is an integer number (1570666075006).

Almost surely, 2^{16668293040620} is an apocalyptic number.

16668293040620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16668293040620 is an abundant number, since it is smaller than the sum of its proper divisors (21027692759524).

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

16668293040620 is a wasteful number, since it uses less digits than its factorization.

16668293040620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64108819409 (or 64108819407 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 16668293040620 in words is "sixteen trillion, six hundred sixty-eight billion, two hundred ninety-three million, forty thousand, six hundred twenty".