66442442204 has 12 divisors (see below), whose sum is σ = 118180409928. Its totient is φ = 32676610800.

The previous prime is 66442442173. The next prime is 66442442237. The reversal of 66442442204 is 40224424466.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 136152302 + ... + 136152789.

It is an arithmetic number, because the mean of its divisors is an integer number (9848367494).

Almost surely, 2^66442442204 is an apocalyptic number.

It is an amenable number.

66442442204 is a deficient number, since it is larger than the sum of its proper divisors (51737967724).

66442442204 is a wasteful number, since it uses less digits than its factorization.

66442442204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272305156 (or 272305154 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 66442442204 in words is "sixty-six billion, four hundred forty-two million, four hundred forty-two thousand, two hundred four".