677165561776 has 40 divisors (see below), whose sum is σ = 1432591660944. Its totient is φ = 307520828160.

The previous prime is 677165561773. The next prime is 677165561791.

It is a happy number.

677165561776 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (677165561773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567711 + ... + 1952446.

Almost surely, 2^677165561776 is an apocalyptic number.

It is an amenable number.

677165561776 is an abundant number, since it is smaller than the sum of its proper divisors (755426099168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677165561776 is a wasteful number, since it uses less digits than its factorization.

677165561776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521269 (or 3521263 counting only the distinct ones).

The product of its digits is 77792400, while the sum is 64.

The spelling of 677165561776 in words is "six hundred seventy-seven billion, one hundred sixty-five million, five hundred sixty-one thousand, seven hundred seventy-six".