16991026264 has 32 divisors (see below), whose sum is σ = 32425448400. Its totient is φ = 8344483200.

The previous prime is 16991026207. The next prime is 16991026267. The reversal of 16991026264 is 46262019961.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16991026267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569314 + ... + 598414.

Almost surely, 2^16991026264 is an apocalyptic number.

It is an amenable number.

16991026264 is a deficient number, since it is larger than the sum of its proper divisors (15434422136).

16991026264 is a wasteful number, since it uses less digits than its factorization.

16991026264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30403 (or 30399 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 16991026264 in words is "sixteen billion, nine hundred ninety-one million, twenty-six thousand, two hundred sixty-four".