66677896 has 16 divisors (see below), whose sum is σ = 126604800. Its totient is φ = 32916624.

The previous prime is 66677887. The next prime is 66677983. The reversal of 66677896 is 69877666.

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, 52120 + ... + 53383.

It is an arithmetic number, because the mean of its divisors is an integer number (7912800).

Almost surely, 2^66677896 is an apocalyptic number.

It is an amenable number.

66677896 is a deficient number, since it is larger than the sum of its proper divisors (59926904).

66677896 is a wasteful number, since it uses less digits than its factorization.

66677896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105588 (or 105584 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The square root of 66677896 is about 8165.6534337431. The cubic root of 66677896 is about 405.5028981180.

The spelling of 66677896 in words is "sixty-six million, six hundred seventy-seven thousand, eight hundred ninety-six".