66375023 has 16 divisors (see below), whose sum is σ = 79888032. Its totient is φ = 54336000.

The previous prime is 66375019. The next prime is 66375073. The reversal of 66375023 is 32057366.

It is a cyclic number.

It is not a de Polignac number, because 66375023 - 2² = 66375019 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 (66375073) 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, 203 + ... + 11523.

It is an arithmetic number, because the mean of its divisors is an integer number (4993002).

Almost surely, 2^66375023 is an apocalyptic number.

66375023 is a deficient number, since it is larger than the sum of its proper divisors (13513009).

66375023 is a wasteful number, since it uses less digits than its factorization.

66375023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 66375023 is about 8147.0867799478. The cubic root of 66375023 is about 404.8879901596.

The spelling of 66375023 in words is "sixty-six million, three hundred seventy-five thousand, twenty-three".