66430742223 has 16 divisors (see below), whose sum is σ = 93797506656. Its totient is φ = 41676288000.

The previous prime is 66430742171. The next prime is 66430742227. The reversal of 66430742223 is 32224703466.

It is not a de Polignac number, because 66430742223 - 2⁶ = 66430742159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66430742227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300223 + ... + 472223.

It is an arithmetic number, because the mean of its divisors is an integer number (5862344166).

Almost surely, 2^66430742223 is an apocalyptic number.

66430742223 is a deficient number, since it is larger than the sum of its proper divisors (27366764433).

66430742223 is a wasteful number, since it uses less digits than its factorization.

66430742223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179594.

The product of its (nonzero) digits is 290304, while the sum is 39.

The spelling of 66430742223 in words is "sixty-six billion, four hundred thirty million, seven hundred forty-two thousand, two hundred twenty-three".