16991770094156 has 192 divisors, whose sum is σ = 35617401738240. Its totient is φ = 6991028352000.

The previous prime is 16991770094153. The next prime is 16991770094177. The reversal of 16991770094156 is 65149007719961.

It is a super-2 number, since 2×16991770094156² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16991770094092 and 16991770094101.

It is not an unprimeable number, because it can be changed into a prime (16991770094153) 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 63 ways as a sum of consecutive naturals, for example, 10180808090 + ... + 10180809758.

It is an arithmetic number, because the mean of its divisors is an integer number (185507300720).

Almost surely, 2^{16991770094156} is an apocalyptic number.

It is an amenable number.

16991770094156 is an abundant number, since it is smaller than the sum of its proper divisors (18625631644084).

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

16991770094156 is a wasteful number, since it uses less digits than its factorization.

16991770094156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 65.

The spelling of 16991770094156 in words is "sixteen trillion, nine hundred ninety-one billion, seven hundred seventy million, ninety-four thousand, one hundred fifty-six".