66496636 has 12 divisors (see below), whose sum is σ = 116427640. Its totient is φ = 33231600.

The previous prime is 66496631. The next prime is 66496667. The reversal of 66496636 is 63669466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66496631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10486 + ... + 15586.

Almost surely, 2^66496636 is an apocalyptic number.

It is an amenable number.

66496636 is a deficient number, since it is larger than the sum of its proper divisors (49931004).

66496636 is a wasteful number, since it uses less digits than its factorization.

66496636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364 (or 8362 counting only the distinct ones).

The product of its digits is 839808, while the sum is 46.

The square root of 66496636 is about 8154.5469524677. The cubic root of 66496636 is about 405.1351192705.

The spelling of 66496636 in words is "sixty-six million, four hundred ninety-six thousand, six hundred thirty-six".