666914511037 has 2 divisors, whose sum is σ = 666914511038. Its totient is φ = 666914511036.

The previous prime is 666914511023. The next prime is 666914511049. The reversal of 666914511037 is 730115419666.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 601781856516 + 65132654521 = 775746^2 + 255211^2 .

It is a cyclic number.

It is not a de Polignac number, because 666914511037 - 2³¹ = 664767027389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666914511007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333457255518 + 333457255519.

It is an arithmetic number, because the mean of its divisors is an integer number (333457255519).

Almost surely, 2^666914511037 is an apocalyptic number.

It is an amenable number.

666914511037 is a deficient number, since it is larger than the sum of its proper divisors (1).

666914511037 is an equidigital number, since it uses as much as digits as its factorization.

666914511037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 666914511037 in words is "six hundred sixty-six billion, nine hundred fourteen million, five hundred eleven thousand, thirty-seven".