66237023 has 4 divisors (see below), whose sum is σ = 66253320. Its totient is φ = 66220728.

The previous prime is 66237001. The next prime is 66237037. The reversal of 66237023 is 32073266.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 66237023 - 2⁸ = 66236767 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 (66237623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3488 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (16563330).

Almost surely, 2^66237023 is an apocalyptic number.

66237023 is a deficient number, since it is larger than the sum of its proper divisors (16297).

66237023 is an equidigital number, since it uses as much as digits as its factorization.

66237023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16296.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 66237023 is about 8138.6130882356. The cubic root of 66237023 is about 404.6071952273.

The spelling of 66237023 in words is "sixty-six million, two hundred thirty-seven thousand, twenty-three".