4566631997 has 2 divisors, whose sum is σ = 4566631998. Its totient is φ = 4566631996.

The previous prime is 4566631967. The next prime is 4566632009. The reversal of 4566631997 is 7991366654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4495836601 + 70795396 = 67051^2 + 8414^2 .

It is a cyclic number.

It is not a de Polignac number, because 4566631997 - 2¹⁸ = 4566369853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4566631957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283315998 + 2283315999.

It is an arithmetic number, because the mean of its divisors is an integer number (2283315999).

Almost surely, 2^4566631997 is an apocalyptic number.

It is an amenable number.

4566631997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4566631997 is an equidigital number, since it uses as much as digits as its factorization.

4566631997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 56.

The square root of 4566631997 is about 67576.8599226096. The cubic root of 4566631997 is about 1659.0723995735.

The spelling of 4566631997 in words is "four billion, five hundred sixty-six million, six hundred thirty-one thousand, nine hundred ninety-seven".