2193115160857 has 2 divisors, whose sum is σ = 2193115160858. Its totient is φ = 2193115160856.

The previous prime is 2193115160849. The next prime is 2193115160867. The reversal of 2193115160857 is 7580615113912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2190743373456 + 2371787401 = 1480116^2 + 48701^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193115160857 - 2³ = 2193115160849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2193115160857.

It is not a weakly prime, because it can be changed into another prime (2193115160867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096557580428 + 1096557580429.

It is an arithmetic number, because the mean of its divisors is an integer number (1096557580429).

Almost surely, 2^{2193115160857} is an apocalyptic number.

It is an amenable number.

2193115160857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193115160857 is an equidigital number, since it uses as much as digits as its factorization.

2193115160857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 2193115160857 in words is "two trillion, one hundred ninety-three billion, one hundred fifteen million, one hundred sixty thousand, eight hundred fifty-seven".