2567610161 has 2 divisors, whose sum is σ = 2567610162. Its totient is φ = 2567610160.

The previous prime is 2567610151. The next prime is 2567610209. The reversal of 2567610161 is 1610167652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1677721600 + 889888561 = 40960^2 + 29831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2567610161 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (2567610151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283805080 + 1283805081.

It is an arithmetic number, because the mean of its divisors is an integer number (1283805081).

Almost surely, 2^2567610161 is an apocalyptic number.

It is an amenable number.

2567610161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2567610161 is an equidigital number, since it uses as much as digits as its factorization.

2567610161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2567610161 is about 50671.5912617711. The cubic root of 2567610161 is about 1369.3349572017.

The spelling of 2567610161 in words is "two billion, five hundred sixty-seven million, six hundred ten thousand, one hundred sixty-one".