766066522 has 12 divisors (see below), whose sum is σ = 1244292030. Its totient is φ = 353569008.

The previous prime is 766066507. The next prime is 766066541. The reversal of 766066522 is 225660667.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 641051761 + 125014761 = 25319^2 + 11181^2 .

It is a super-2 number, since 2×766066522² = 1173715832258352968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1132897 + ... + 1133572.

Almost surely, 2^766066522 is an apocalyptic number.

766066522 is a deficient number, since it is larger than the sum of its proper divisors (478225508).

766066522 is a wasteful number, since it uses less digits than its factorization.

766066522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266497 (or 2266484 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 766066522 is about 27677.9067488855. The cubic root of 766066522 is about 915.0022482949.

The spelling of 766066522 in words is "seven hundred sixty-six million, sixty-six thousand, five hundred twenty-two".