766606606667 has 64 divisors (see below), whose sum is σ = 892809216000. Its totient is φ = 651457614720.

The previous prime is 766606606639. The next prime is 766606606699.

It is a happy number.

766606606667 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 766606606667 - 2⁸ = 766606606411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (766606606867) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 695019038 + ... + 695020140.

It is an arithmetic number, because the mean of its divisors is an integer number (13950144000).

Almost surely, 2^766606606667 is an apocalyptic number.

766606606667 is a deficient number, since it is larger than the sum of its proper divisors (126202609333).

766606606667 is a wasteful number, since it uses less digits than its factorization.

766606606667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 82301184, while the sum is 62.

The spelling of 766606606667 in words is "seven hundred sixty-six billion, six hundred six million, six hundred six thousand, six hundred sixty-seven".