2136646352237 has 2 divisors, whose sum is σ = 2136646352238. Its totient is φ = 2136646352236.

The previous prime is 2136646352153. The next prime is 2136646352297. The reversal of 2136646352237 is 7322536466312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2121948669481 + 14697682756 = 1456691^2 + 121234^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136646352237 - 2¹² = 2136646348141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2136646352297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068323176118 + 1068323176119.

It is an arithmetic number, because the mean of its divisors is an integer number (1068323176119).

Almost surely, 2^{2136646352237} is an apocalyptic number.

It is an amenable number.

2136646352237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136646352237 is an equidigital number, since it uses as much as digits as its factorization.

2136646352237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 50.

The spelling of 2136646352237 in words is "two trillion, one hundred thirty-six billion, six hundred forty-six million, three hundred fifty-two thousand, two hundred thirty-seven".