16956985108996 has 27 divisors (see below), whose sum is σ = 29855902527829. Its totient is φ = 8427039568928.

The previous prime is 16956985108991. The next prime is 16956985109003. The reversal of 16956985108996 is 69980158965961.

The square root of 16956985108996 is 4117886.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 24747694596 + 16932237414400 = 157314^2 + 4114880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16956985108991) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1375367760 + ... + 1375380088.

Almost surely, 2^{16956985108996} is an apocalyptic number.

16956985108996 is the 4117886-th square number.

It is an amenable number.

16956985108996 is a deficient number, since it is larger than the sum of its proper divisors (12898917418833).

16956985108996 is an frugal number, since it uses more digits than its factorization.

16956985108996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24996 (or 12498 counting only the distinct ones).

The product of its (nonzero) digits is 2267481600, while the sum is 82.

The spelling of 16956985108996 in words is "sixteen trillion, nine hundred fifty-six billion, nine hundred eighty-five million, one hundred eight thousand, nine hundred ninety-six".