2422161557 has 2 divisors, whose sum is σ = 2422161558. Its totient is φ = 2422161556.

The previous prime is 2422161541. The next prime is 2422161563. The reversal of 2422161557 is 7551612242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1546534276 + 875627281 = 39326^2 + 29591^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422161557 - 2⁴ = 2422161541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2422161517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211080778 + 1211080779.

It is an arithmetic number, because the mean of its divisors is an integer number (1211080779).

Almost surely, 2^2422161557 is an apocalyptic number.

It is an amenable number.

2422161557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2422161557 is an equidigital number, since it uses as much as digits as its factorization.

2422161557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 2422161557 is about 49215.4605484902. The cubic root of 2422161557 is about 1342.9743016036.

Adding to 2422161557 its reverse (7551612242), we get a palindrome (9973773799).

The spelling of 2422161557 in words is "two billion, four hundred twenty-two million, one hundred sixty-one thousand, five hundred fifty-seven".