996683077765 has 4 divisors (see below), whose sum is σ = 1196019693324. Its totient is φ = 797346462208.

The previous prime is 996683077759. The next prime is 996683077769. The reversal of 996683077765 is 567770386699.

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

It can be written as a sum of positive squares in 2 ways, for example, as 192951104644 + 803731973121 = 439262^2 + 896511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996683077765 is a prime.

It is a super-2 number, since 2×996683077765² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996683077769) 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, 99668307772 + ... + 99668307781.

It is an arithmetic number, because the mean of its divisors is an integer number (299004923331).

Almost surely, 2^996683077765 is an apocalyptic number.

It is an amenable number.

996683077765 is a deficient number, since it is larger than the sum of its proper divisors (199336615559).

996683077765 is a wasteful number, since it uses less digits than its factorization.

996683077765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199336615558.

The product of its (nonzero) digits is 720135360, while the sum is 73.

The spelling of 996683077765 in words is "nine hundred ninety-six billion, six hundred eighty-three million, seventy-seven thousand, seven hundred sixty-five".