667233125257 has 2 divisors, whose sum is σ = 667233125258. Its totient is φ = 667233125256.

The previous prime is 667233125227. The next prime is 667233125323. The reversal of 667233125257 is 752521332766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 554159647561 + 113073477696 = 744419^2 + 336264^2 .

It is a cyclic number.

It is not a de Polignac number, because 667233125257 - 2¹⁵ = 667233092489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667233125257.

It is not a weakly prime, because it can be changed into another prime (667233125227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333616562628 + 333616562629.

It is an arithmetic number, because the mean of its divisors is an integer number (333616562629).

Almost surely, 2^667233125257 is an apocalyptic number.

It is an amenable number.

667233125257 is a deficient number, since it is larger than the sum of its proper divisors (1).

667233125257 is an equidigital number, since it uses as much as digits as its factorization.

667233125257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 49.

The spelling of 667233125257 in words is "six hundred sixty-seven billion, two hundred thirty-three million, one hundred twenty-five thousand, two hundred fifty-seven".