2646752161 has 2 divisors, whose sum is σ = 2646752162. Its totient is φ = 2646752160.

The previous prime is 2646752137. The next prime is 2646752177. The reversal of 2646752161 is 1612576462.

It is a happy number.

2646752161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2631690000 + 15062161 = 51300^2 + 3881^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646752161 - 2⁷ = 2646752033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2646752111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323376080 + 1323376081.

It is an arithmetic number, because the mean of its divisors is an integer number (1323376081).

Almost surely, 2^2646752161 is an apocalyptic number.

It is an amenable number.

2646752161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646752161 is an equidigital number, since it uses as much as digits as its factorization.

2646752161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 2646752161 is about 51446.5952323378. The cubic root of 2646752161 is about 1383.2619330384.

The spelling of 2646752161 in words is "two billion, six hundred forty-six million, seven hundred fifty-two thousand, one hundred sixty-one".