16977984476 has 24 divisors (see below), whose sum is σ = 29803912320. Its totient is φ = 8462619072.

The previous prime is 16977984469. The next prime is 16977984493. The reversal of 16977984476 is 67448977961.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2136206 + ... + 2144138.

It is an arithmetic number, because the mean of its divisors is an integer number (1241829680).

Almost surely, 2^16977984476 is an apocalyptic number.

It is an amenable number.

16977984476 is a deficient number, since it is larger than the sum of its proper divisors (12825927844).

16977984476 is a wasteful number, since it uses less digits than its factorization.

16977984476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9533 (or 9531 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 68.

The spelling of 16977984476 in words is "sixteen billion, nine hundred seventy-seven million, nine hundred eighty-four thousand, four hundred seventy-six".