66424602223 has 24 divisors (see below), whose sum is σ = 79087396032. Its totient is φ = 55601167104.

The previous prime is 66424602217. The next prime is 66424602227. The reversal of 66424602223 is 32220642466.

It is a de Polignac number, because none of the positive numbers 2^k-66424602223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66424602227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1020915 + ... + 1084027.

It is an arithmetic number, because the mean of its divisors is an integer number (3295308168).

Almost surely, 2^66424602223 is an apocalyptic number.

66424602223 is a deficient number, since it is larger than the sum of its proper divisors (12662793809).

66424602223 is a wasteful number, since it uses less digits than its factorization.

66424602223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63631 (or 63624 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 66424602223 in words is "sixty-six billion, four hundred twenty-four million, six hundred two thousand, two hundred twenty-three".