66636606443224 has 16 divisors (see below), whose sum is σ = 124989420792600. Its totient is φ = 33306094231872.

The previous prime is 66636606443213. The next prime is 66636606443233. The reversal of 66636606443224 is 42234460663666.

It is a congruent number.

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, 1526100522 + ... + 1526144185.

Almost surely, 2^{66636606443224} is an apocalyptic number.

It is an amenable number.

66636606443224 is a deficient number, since it is larger than the sum of its proper divisors (58352814349376).

66636606443224 is a wasteful number, since it uses less digits than its factorization.

66636606443224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052247442 (or 3052247438 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 58.

The spelling of 66636606443224 in words is "sixty-six trillion, six hundred thirty-six billion, six hundred six million, four hundred forty-three thousand, two hundred twenty-four".