666027615405037 has 2 divisors, whose sum is σ = 666027615405038. Its totient is φ = 666027615405036.

The previous prime is 666027615404951. The next prime is 666027615405181. The reversal of 666027615405037 is 730504516720666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 471817219593316 + 194210395811721 = 21721354^2 + 13935939^2 .

It is a cyclic number.

It is not a de Polignac number, because 666027615405037 - 2²⁷ = 666027481187309 is a prime.

It is a super-3 number, since 3×666027615405037³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666027615405437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333013807702518 + 333013807702519.

It is an arithmetic number, because the mean of its divisors is an integer number (333013807702519).

Almost surely, 2^{666027615405037} is an apocalyptic number.

It is an amenable number.

666027615405037 is a deficient number, since it is larger than the sum of its proper divisors (1).

666027615405037 is an equidigital number, since it uses as much as digits as its factorization.

666027615405037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38102400, while the sum is 58.

The spelling of 666027615405037 in words is "six hundred sixty-six trillion, twenty-seven billion, six hundred fifteen million, four hundred five thousand, thirty-seven".