22661155116629 has 2 divisors, whose sum is σ = 22661155116630. Its totient is φ = 22661155116628.

The previous prime is 22661155116623. The next prime is 22661155116631. The reversal of 22661155116629 is 92661155116622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18917297757604 + 3743857359025 = 4349402^2 + 1934905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22661155116629 is a prime.

Together with 22661155116631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22661155116623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11330577558314 + 11330577558315.

It is an arithmetic number, because the mean of its divisors is an integer number (11330577558315).

Almost surely, 2^{22661155116629} is an apocalyptic number.

It is an amenable number.

22661155116629 is a deficient number, since it is larger than the sum of its proper divisors (1).

22661155116629 is an equidigital number, since it uses as much as digits as its factorization.

22661155116629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 53.

The spelling of 22661155116629 in words is "twenty-two trillion, six hundred sixty-one billion, one hundred fifty-five million, one hundred sixteen thousand, six hundred twenty-nine".