16908904436922 has 64 divisors (see below), whose sum is σ = 39786691501440. Its totient is φ = 5304616466688.

The previous prime is 16908904436891. The next prime is 16908904436929. The reversal of 16908904436922 is 22963440980961.

16908904436922 is a `hidden beast` number, since 1 + 6 + 90 + 8 + 90 + 4 + 436 + 9 + 22 = 666.

It is a super-2 number, since 2×16908904436922² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16908904436922.

It is not an unprimeable number, because it can be changed into a prime (16908904436929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38518593 + ... + 38955099.

It is an arithmetic number, because the mean of its divisors is an integer number (621667054710).

Almost surely, 2^{16908904436922} is an apocalyptic number.

16908904436922 is an abundant number, since it is smaller than the sum of its proper divisors (22877787064518).

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

16908904436922 is a wasteful number, since it uses less digits than its factorization.

16908904436922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478732 (or 478726 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 16908904436922 in words is "sixteen trillion, nine hundred eight billion, nine hundred four million, four hundred thirty-six thousand, nine hundred twenty-two".