16684250091756 has 36 divisors (see below), whose sum is σ = 42154880414472. Its totient is φ = 5133615412224.

The previous prime is 16684250091737. The next prime is 16684250091767. The reversal of 16684250091756 is 65719005248661.

It is a super-2 number, since 2×16684250091756² (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 16684250091756.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4113471861 + ... + 4113475916.

It is an arithmetic number, because the mean of its divisors is an integer number (1170968900402).

Almost surely, 2^{16684250091756} is an apocalyptic number.

It is an amenable number.

16684250091756 is an abundant number, since it is smaller than the sum of its proper divisors (25470630322716).

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

16684250091756 is a wasteful number, since it uses less digits than its factorization.

16684250091756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226947810 (or 8226947795 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 16684250091756 in words is "sixteen trillion, six hundred eighty-four billion, two hundred fifty million, ninety-one thousand, seven hundred fifty-six".