2136866054399 has 2 divisors, whose sum is σ = 2136866054400. Its totient is φ = 2136866054398.

The previous prime is 2136866054371. The next prime is 2136866054413. The reversal of 2136866054399 is 9934506686312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2136866054399 - 2¹⁶ = 2136865988863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2136836054399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068433027199 + 1068433027200.

It is an arithmetic number, because the mean of its divisors is an integer number (1068433027200).

Almost surely, 2^{2136866054399} is an apocalyptic number.

2136866054399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136866054399 is an equidigital number, since it uses as much as digits as its factorization.

2136866054399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50388480, while the sum is 62.

The spelling of 2136866054399 in words is "two trillion, one hundred thirty-six billion, eight hundred sixty-six million, fifty-four thousand, three hundred ninety-nine".