16976820836 has 12 divisors (see below), whose sum is σ = 29836946412. Its totient is φ = 8451979008.

The previous prime is 16976820829. The next prime is 16976820871. The reversal of 16976820836 is 63802867961.

It can be written as a sum of positive squares in 2 ways, for example, as 1421742436 + 15555078400 = 37706^2 + 124720^2 .

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, 9106805 + ... + 9108668.

It is an arithmetic number, because the mean of its divisors is an integer number (2486412201).

Almost surely, 2^16976820836 is an apocalyptic number.

It is an amenable number.

16976820836 is a deficient number, since it is larger than the sum of its proper divisors (12860125576).

16976820836 is a wasteful number, since it uses less digits than its factorization.

16976820836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18215710 (or 18215708 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 16976820836 in words is "sixteen billion, nine hundred seventy-six million, eight hundred twenty thousand, eight hundred thirty-six".