16996685817 has 16 divisors (see below), whose sum is σ = 22889952000. Its totient is φ = 11217419472.

The previous prime is 16996685807. The next prime is 16996685831. The reversal of 16996685817 is 71858669961.

It is not a de Polignac number, because 16996685817 - 2¹⁵ = 16996653049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16996685807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463518 + ... + 498840.

It is an arithmetic number, because the mean of its divisors is an integer number (1430622000).

Almost surely, 2^16996685817 is an apocalyptic number.

It is an amenable number.

16996685817 is a deficient number, since it is larger than the sum of its proper divisors (5893266183).

16996685817 is a wasteful number, since it uses less digits than its factorization.

16996685817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36932.

The product of its digits is 39191040, while the sum is 66.

The spelling of 16996685817 in words is "sixteen billion, nine hundred ninety-six million, six hundred eighty-five thousand, eight hundred seventeen".