766568564 has 12 divisors (see below), whose sum is σ = 1399821024. Its totient is φ = 366619704.

The previous prime is 766568557. The next prime is 766568581. The reversal of 766568564 is 465865667.

766568564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166042 + ... + 4166225.

It is an arithmetic number, because the mean of its divisors is an integer number (116651752).

Almost surely, 2^766568564 is an apocalyptic number.

It is an amenable number.

766568564 is a deficient number, since it is larger than the sum of its proper divisors (633252460).

766568564 is a wasteful number, since it uses less digits than its factorization.

766568564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8332294 (or 8332292 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 53.

The square root of 766568564 is about 27686.9746270697. The cubic root of 766568564 is about 915.2020870090.

The spelling of 766568564 in words is "seven hundred sixty-six million, five hundred sixty-eight thousand, five hundred sixty-four".