766630666 has 8 divisors (see below), whose sum is σ = 1152252000. Its totient is φ = 382546668.

The previous prime is 766630661. The next prime is 766630679. The reversal of 766630666 is 666036667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (766630661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383086 + ... + 385081.

It is an arithmetic number, because the mean of its divisors is an integer number (144031500).

Almost surely, 2^766630666 is an apocalyptic number.

766630666 is a deficient number, since it is larger than the sum of its proper divisors (385621334).

766630666 is a wasteful number, since it uses less digits than its factorization.

766630666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768668.

The product of its (nonzero) digits is 979776, while the sum is 46.

The square root of 766630666 is about 27688.0961064498. The cubic root of 766630666 is about 915.2268007562.

The spelling of 766630666 in words is "seven hundred sixty-six million, six hundred thirty thousand, six hundred sixty-six".