2566161047 has 2 divisors, whose sum is σ = 2566161048. Its totient is φ = 2566161046.

The previous prime is 2566161007. The next prime is 2566161061. The reversal of 2566161047 is 7401616652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2566161047 - 2⁶ = 2566160983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2566161047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566161007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283080523 + 1283080524.

It is an arithmetic number, because the mean of its divisors is an integer number (1283080524).

Almost surely, 2^2566161047 is an apocalyptic number.

2566161047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566161047 is an equidigital number, since it uses as much as digits as its factorization.

2566161047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2566161047 is about 50657.2901663719. The cubic root of 2566161047 is about 1369.0772992038.

Adding to 2566161047 its reverse (7401616652), we get a palindrome (9967777699).

The spelling of 2566161047 in words is "two billion, five hundred sixty-six million, one hundred sixty-one thousand, forty-seven".