66396662 has 16 divisors (see below), whose sum is σ = 105740640. Its totient is φ = 31160448.

The previous prime is 66396643. The next prime is 66396719. The reversal of 66396662 is 26669366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11039 + ... + 15957.

It is an arithmetic number, because the mean of its divisors is an integer number (6608790).

Almost surely, 2^66396662 is an apocalyptic number.

66396662 is a deficient number, since it is larger than the sum of its proper divisors (39343978).

66396662 is a wasteful number, since it uses less digits than its factorization.

66396662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its digits is 419904, while the sum is 44.

The square root of 66396662 is about 8148.4146924417. The cubic root of 66396662 is about 404.9319847170.

The spelling of 66396662 in words is "sixty-six million, three hundred ninety-six thousand, six hundred sixty-two".