16891841070992 has 20 divisors (see below), whose sum is σ = 32728077447180. Its totient is φ = 8445885600768.

The previous prime is 16891841070989. The next prime is 16891841071013. The reversal of 16891841070992 is 29907014819861.

It can be written as a sum of positive squares in 2 ways, for example, as 10027000903936 + 6864840167056 = 3166544^2 + 2620084^2 .

It is a super-3 number, since 3×16891841070992³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054984 + ... + 6164952.

It is an arithmetic number, because the mean of its divisors is an integer number (1636403872359).

Almost surely, 2^{16891841070992} is an apocalyptic number.

It is a pronic number, being equal to 4109968×4109969.

It is an amenable number.

16891841070992 is a deficient number, since it is larger than the sum of its proper divisors (15836236376188).

16891841070992 is a wasteful number, since it uses less digits than its factorization.

16891841070992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366850 (or 4366844 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 65.

The spelling of 16891841070992 in words is "sixteen trillion, eight hundred ninety-one billion, eight hundred forty-one million, seventy thousand, nine hundred ninety-two".