76671664 has 20 divisors (see below), whose sum is σ = 151713504. Its totient is φ = 37519808.

The previous prime is 76671653. The next prime is 76671671. The reversal of 76671664 is 46617667.

It is a self number, because there is not a number n which added to its sum of digits gives 76671664.

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, 50227 + ... + 51730.

Almost surely, 2^76671664 is an apocalyptic number.

It is an amenable number.

76671664 is a deficient number, since it is larger than the sum of its proper divisors (75041840).

76671664 is a wasteful number, since it uses less digits than its factorization.

76671664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102012 (or 102006 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 76671664 is about 8756.2357209020. The cubic root of 76671664 is about 424.8265294355.

The spelling of 76671664 in words is "seventy-six million, six hundred seventy-one thousand, six hundred sixty-four".