2105158555823 has 2 divisors, whose sum is σ = 2105158555824. Its totient is φ = 2105158555822.

The previous prime is 2105158555811. The next prime is 2105158555853. The reversal of 2105158555823 is 3285558515012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105158555823 - 2⁴ = 2105158555807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105158555853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052579277911 + 1052579277912.

It is an arithmetic number, because the mean of its divisors is an integer number (1052579277912).

Almost surely, 2^{2105158555823} is an apocalyptic number.

2105158555823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105158555823 is an equidigital number, since it uses as much as digits as its factorization.

2105158555823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400000, while the sum is 50.

The spelling of 2105158555823 in words is "two trillion, one hundred five billion, one hundred fifty-eight million, five hundred fifty-five thousand, eight hundred twenty-three".