20260170899 has 2 divisors, whose sum is σ = 20260170900. Its totient is φ = 20260170898.

The previous prime is 20260170817. The next prime is 20260170911. The reversal of 20260170899 is 99807106202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20260170899 is a prime.

It is not a weakly prime, because it can be changed into another prime (20260170199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10130085449 + 10130085450.

It is an arithmetic number, because the mean of its divisors is an integer number (10130085450).

Almost surely, 2^20260170899 is an apocalyptic number.

20260170899 is a deficient number, since it is larger than the sum of its proper divisors (1).

20260170899 is an equidigital number, since it uses as much as digits as its factorization.

20260170899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 20260170899 in words is "twenty billion, two hundred sixty million, one hundred seventy thousand, eight hundred ninety-nine".