2160980761 has 2 divisors, whose sum is σ = 2160980762. Its totient is φ = 2160980760.

The previous prime is 2160980741. The next prime is 2160980771. The reversal of 2160980761 is 1670890612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275561225 + 885419536 = 35715^2 + 29756^2 .

It is a cyclic number.

It is not a de Polignac number, because 2160980761 - 2⁵ = 2160980729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2160980741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080490380 + 1080490381.

It is an arithmetic number, because the mean of its divisors is an integer number (1080490381).

Almost surely, 2^2160980761 is an apocalyptic number.

It is an amenable number.

2160980761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160980761 is an equidigital number, since it uses as much as digits as its factorization.

2160980761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 2160980761 is about 46486.3502654274. The cubic root of 2160980761 is about 1292.8564312226.

The spelling of 2160980761 in words is "two billion, one hundred sixty million, nine hundred eighty thousand, seven hundred sixty-one".