40660200257 has 2 divisors, whose sum is σ = 40660200258. Its totient is φ = 40660200256.

The previous prime is 40660200179. The next prime is 40660200299. The reversal of 40660200257 is 75200206604.

40660200257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24476289601 + 16183910656 = 156449^2 + 127216^2 .

It is a cyclic number.

It is not a de Polignac number, because 40660200257 - 2⁸ = 40660200001 is a prime.

It is not a weakly prime, because it can be changed into another prime (40660200457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20330100128 + 20330100129.

It is an arithmetic number, because the mean of its divisors is an integer number (20330100129).

Almost surely, 2^40660200257 is an apocalyptic number.

It is an amenable number.

40660200257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40660200257 is an equidigital number, since it uses as much as digits as its factorization.

40660200257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 40660200257 in words is "forty billion, six hundred sixty million, two hundred thousand, two hundred fifty-seven".