2244919661 has 2 divisors, whose sum is σ = 2244919662. Its totient is φ = 2244919660.

The previous prime is 2244919583. The next prime is 2244919681. The reversal of 2244919661 is 1669194422.

2244919661 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., 2191176100 + 53743561 = 46810^2 + 7331^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244919661 - 2³⁰ = 1171177837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2244919681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122459830 + 1122459831.

It is an arithmetic number, because the mean of its divisors is an integer number (1122459831).

Almost surely, 2^2244919661 is an apocalyptic number.

It is an amenable number.

2244919661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2244919661 is an equidigital number, since it uses as much as digits as its factorization.

2244919661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 2244919661 is about 47380.5831644145. The cubic root of 2244919661 is about 1309.3837127947.

The spelling of 2244919661 in words is "two billion, two hundred forty-four million, nine hundred nineteen thousand, six hundred sixty-one".