16776832997 has 2 divisors, whose sum is σ = 16776832998. Its totient is φ = 16776832996.

The previous prime is 16776832981. The next prime is 16776833041. The reversal of 16776832997 is 79923867761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16145768356 + 631064641 = 127066^2 + 25121^2 .

It is a cyclic number.

It is not a de Polignac number, because 16776832997 - 2⁴ = 16776832981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16776832297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8388416498 + 8388416499.

It is an arithmetic number, because the mean of its divisors is an integer number (8388416499).

Almost surely, 2^16776832997 is an apocalyptic number.

It is an amenable number.

16776832997 is a deficient number, since it is larger than the sum of its proper divisors (1).

16776832997 is an equidigital number, since it uses as much as digits as its factorization.

16776832997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48009024, while the sum is 65.

The spelling of 16776832997 in words is "sixteen billion, seven hundred seventy-six million, eight hundred thirty-two thousand, nine hundred ninety-seven".