16776677672 has 16 divisors (see below), whose sum is σ = 31466121300. Its totient is φ = 8385712000.

The previous prime is 16776677669. The next prime is 16776677693. The reversal of 16776677672 is 27677667761.

It can be written as a sum of positive squares in 2 ways, for example, as 14985187396 + 1791490276 = 122414^2 + 42326^2 .

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, 301079 + ... + 352422.

Almost surely, 2^16776677672 is an apocalyptic number.

It is an amenable number.

16776677672 is a deficient number, since it is larger than the sum of its proper divisors (14689443628).

16776677672 is a wasteful number, since it uses less digits than its factorization.

16776677672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656716 (or 656712 counting only the distinct ones).

The product of its digits is 43563744, while the sum is 62.

The spelling of 16776677672 in words is "sixteen billion, seven hundred seventy-six million, six hundred seventy-seven thousand, six hundred seventy-two".