2160755771 has 2 divisors, whose sum is σ = 2160755772. Its totient is φ = 2160755770.

The previous prime is 2160755767. The next prime is 2160755783. The reversal of 2160755771 is 1775570612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2160755771 - 2² = 2160755767 is a prime.

It is not a weakly prime, because it can be changed into another prime (2160751771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080377885 + 1080377886.

It is an arithmetic number, because the mean of its divisors is an integer number (1080377886).

Almost surely, 2^2160755771 is an apocalyptic number.

2160755771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160755771 is an equidigital number, since it uses as much as digits as its factorization.

2160755771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102900, while the sum is 41.

The square root of 2160755771 is about 46483.9302447631. The cubic root of 2160755771 is about 1292.8115611850.

The spelling of 2160755771 in words is "two billion, one hundred sixty million, seven hundred fifty-five thousand, seven hundred seventy-one".