16977569759 has 4 divisors (see below), whose sum is σ = 17085707304. Its totient is φ = 16869432216.

The previous prime is 16977569737. The next prime is 16977569767. The reversal of 16977569759 is 95796577961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16977569759 is a prime.

It is a super-2 number, since 2×16977569759² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16977569692 and 16977569701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16977569359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54068537 + ... + 54068850.

It is an arithmetic number, because the mean of its divisors is an integer number (4271426826).

Almost surely, 2^16977569759 is an apocalyptic number.

16977569759 is a deficient number, since it is larger than the sum of its proper divisors (108137545).

16977569759 is a wasteful number, since it uses less digits than its factorization.

16977569759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108137544.

The product of its digits is 225042300, while the sum is 71.

The spelling of 16977569759 in words is "sixteen billion, nine hundred seventy-seven million, five hundred sixty-nine thousand, seven hundred fifty-nine".