16677777767575 has 12 divisors (see below), whose sum is σ = 21239375363560. Its totient is φ = 12981621612960.

The previous prime is 16677777767557. The next prime is 16677777767587. The reversal of 16677777767575 is 57576777777661.

It is a de Polignac number, because none of the positive numbers 2^k-16677777767575 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16677777767492 and 16677777767501.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 9015014085 + ... + 9015015934.

Almost surely, 2^{16677777767575} is an apocalyptic number.

16677777767575 is a deficient number, since it is larger than the sum of its proper divisors (4561597595985).

16677777767575 is a wasteful number, since it uses less digits than its factorization.

16677777767575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18030030066 (or 18030030061 counting only the distinct ones).

The product of its digits is 31129925400, while the sum is 85.

The spelling of 16677777767575 in words is "sixteen trillion, six hundred seventy-seven billion, seven hundred seventy-seven million, seven hundred sixty-seven thousand, five hundred seventy-five".