22757007661 has 2 divisors, whose sum is σ = 22757007662. Its totient is φ = 22757007660.

The previous prime is 22757007643. The next prime is 22757007673. The reversal of 22757007661 is 16670075722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20424697225 + 2332310436 = 142915^2 + 48294^2 .

It is a cyclic number.

It is not a de Polignac number, because 22757007661 - 2²¹ = 22754910509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22757002661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11378503830 + 11378503831.

It is an arithmetic number, because the mean of its divisors is an integer number (11378503831).

Almost surely, 2^22757007661 is an apocalyptic number.

It is an amenable number.

22757007661 is a deficient number, since it is larger than the sum of its proper divisors (1).

22757007661 is an equidigital number, since it uses as much as digits as its factorization.

22757007661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 22757007661 in words is "twenty-two billion, seven hundred fifty-seven million, seven thousand, six hundred sixty-one".