766101666 has 32 divisors (see below), whose sum is σ = 1699833600. Its totient is φ = 228216080.

The previous prime is 766101647. The next prime is 766101673. The reversal of 766101666 is 666101667.

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, 94476 + ... + 102263.

It is an arithmetic number, because the mean of its divisors is an integer number (53119800).

Almost surely, 2^766101666 is an apocalyptic number.

766101666 is an abundant number, since it is smaller than the sum of its proper divisors (933731934).

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

766101666 is a wasteful number, since it uses less digits than its factorization.

766101666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196814.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 766101666 is about 27678.5416162051. The cubic root of 766101666 is about 915.0162402684.

Subtracting from 766101666 its reverse (666101667), we obtain a palindrome (99999999).

The spelling of 766101666 in words is "seven hundred sixty-six million, one hundred one thousand, six hundred sixty-six".