76677666 has 24 divisors (see below), whose sum is σ = 166061520. Its totient is φ = 23592816.

The previous prime is 76677659. The next prime is 76677707. The reversal of 76677666 is 66677667.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36796 + ... + 38823.

It is an arithmetic number, because the mean of its divisors is an integer number (6919230).

Almost surely, 2^76677666 is an apocalyptic number.

76677666 is an abundant number, since it is smaller than the sum of its proper divisors (89383854).

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

76677666 is a wasteful number, since it uses less digits than its factorization.

76677666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75650 (or 75637 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 51.

The square root of 76677666 is about 8756.5784413777. The cubic root of 76677666 is about 424.8376145490.

Subtracting from 76677666 its reverse (66677667), we obtain a palindrome (9999999).

The spelling of 76677666 in words is "seventy-six million, six hundred seventy-seven thousand, six hundred sixty-six".