66623746233 has 48 divisors (see below), whose sum is σ = 99201691008. Its totient is φ = 39734956800.

The previous prime is 66623746223. The next prime is 66623746243. The reversal of 66623746233 is 33264732666.

66623746233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66623746223) and next prime (66623746243).

It is not a de Polignac number, because 66623746233 - 2¹⁸ = 66623484089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66623746213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15796741 + ... + 15800957.

It is an arithmetic number, because the mean of its divisors is an integer number (2066701896).

Almost surely, 2^66623746233 is an apocalyptic number.

It is an amenable number.

66623746233 is a deficient number, since it is larger than the sum of its proper divisors (32577944775).

66623746233 is a wasteful number, since it uses less digits than its factorization.

66623746233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926 (or 4915 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 48.

The spelling of 66623746233 in words is "sixty-six billion, six hundred twenty-three million, seven hundred forty-six thousand, two hundred thirty-three".