2363251661 has 2 divisors, whose sum is σ = 2363251662. Its totient is φ = 2363251660.

The previous prime is 2363251619. The next prime is 2363251717. The reversal of 2363251661 is 1661523632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1793522500 + 569729161 = 42350^2 + 23869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2363251661 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 (2363251361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1181625830 + 1181625831.

It is an arithmetic number, because the mean of its divisors is an integer number (1181625831).

Almost surely, 2^2363251661 is an apocalyptic number.

It is an amenable number.

2363251661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2363251661 is an equidigital number, since it uses as much as digits as its factorization.

2363251661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 2363251661 is about 48613.2868771491. The cubic root of 2363251661 is about 1331.9972369084.

The spelling of 2363251661 in words is "two billion, three hundred sixty-three million, two hundred fifty-one thousand, six hundred sixty-one".