66246023 has 2 divisors, whose sum is σ = 66246024. Its totient is φ = 66246022.

The previous prime is 66246013. The next prime is 66246029. The reversal of 66246023 is 32064266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66246023 - 2⁴ = 66246007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66246029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33123011 + 33123012.

It is an arithmetic number, because the mean of its divisors is an integer number (33123012).

Almost surely, 2^66246023 is an apocalyptic number.

66246023 is a deficient number, since it is larger than the sum of its proper divisors (1).

66246023 is an equidigital number, since it uses as much as digits as its factorization.

66246023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 66246023 is about 8139.1659892154. The cubic root of 66246023 is about 404.6255198222.

The spelling of 66246023 in words is "sixty-six million, two hundred forty-six thousand, twenty-three".