66572251883 has 2 divisors, whose sum is σ = 66572251884. Its totient is φ = 66572251882.

The previous prime is 66572251861. The next prime is 66572251909. The reversal of 66572251883 is 38815227566.

66572251883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66572251883 - 2¹⁰ = 66572250859 is a prime.

It is not a weakly prime, because it can be changed into another prime (66572257883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33286125941 + 33286125942.

It is an arithmetic number, because the mean of its divisors is an integer number (33286125942).

Almost surely, 2^66572251883 is an apocalyptic number.

66572251883 is a deficient number, since it is larger than the sum of its proper divisors (1).

66572251883 is an equidigital number, since it uses as much as digits as its factorization.

66572251883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 53.

The spelling of 66572251883 in words is "sixty-six billion, five hundred seventy-two million, two hundred fifty-one thousand, eight hundred eighty-three".