76596642661 has 16 divisors (see below), whose sum is σ = 97446038400. Its totient is φ = 59685692640.

The previous prime is 76596642659. The next prime is 76596642667. The reversal of 76596642661 is 16624669567.

It is a happy number.

It is not a de Polignac number, because 76596642661 - 2¹ = 76596642659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76596642596 and 76596642605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76596642667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10146856 + ... + 10154401.

It is an arithmetic number, because the mean of its divisors is an integer number (6090377400).

Almost surely, 2^76596642661 is an apocalyptic number.

It is an amenable number.

76596642661 is a deficient number, since it is larger than the sum of its proper divisors (20849395739).

76596642661 is a wasteful number, since it uses less digits than its factorization.

76596642661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20301289 (or 20301275 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 58.

The spelling of 76596642661 in words is "seventy-six billion, five hundred ninety-six million, six hundred forty-two thousand, six hundred sixty-one".