2605167000091 has 2 divisors, whose sum is σ = 2605167000092. Its totient is φ = 2605167000090.

The previous prime is 2605167000047. The next prime is 2605167000113. The reversal of 2605167000091 is 1900007615062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2605167000091 - 2¹⁹ = 2605166475803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2605167000091.

It is not a weakly prime, because it can be changed into another prime (2605167000001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302583500045 + 1302583500046.

It is an arithmetic number, because the mean of its divisors is an integer number (1302583500046).

Almost surely, 2^{2605167000091} is an apocalyptic number.

2605167000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605167000091 is an equidigital number, since it uses as much as digits as its factorization.

2605167000091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 2605167000091 in words is "two trillion, six hundred five billion, one hundred sixty-seven million, ninety-one", and thus it is an aban number.