766113655760 has 80 divisors (see below), whose sum is σ = 1842709108176. Its totient is φ = 295986622464.

The previous prime is 766113655759. The next prime is 766113655789. The reversal of 766113655760 is 67556311667.

It can be written as a sum of positive squares in 8 ways, for example, as 404653456 + 765709002304 = 20116^2 + 875048^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539087 + ... + 1350126.

Almost surely, 2^766113655760 is an apocalyptic number.

It is an amenable number.

766113655760 is an abundant number, since it is smaller than the sum of its proper divisors (1076595452416).

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

766113655760 is a wasteful number, since it uses less digits than its factorization.

766113655760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889400 (or 1889394 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 53.

The spelling of 766113655760 in words is "seven hundred sixty-six billion, one hundred thirteen million, six hundred fifty-five thousand, seven hundred sixty".