22636165631 has 2 divisors, whose sum is σ = 22636165632. Its totient is φ = 22636165630.

The previous prime is 22636165613. The next prime is 22636165649. The reversal of 22636165631 is 13656163622.

Together with previous prime (22636165613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (22636165613) and next prime (22636165649).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22636165631 is a prime.

It is a super-2 number, since 2×22636165631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22636165661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318082815 + 11318082816.

It is an arithmetic number, because the mean of its divisors is an integer number (11318082816).

Almost surely, 2^22636165631 is an apocalyptic number.

22636165631 is a deficient number, since it is larger than the sum of its proper divisors (1).

22636165631 is an equidigital number, since it uses as much as digits as its factorization.

22636165631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

The spelling of 22636165631 in words is "twenty-two billion, six hundred thirty-six million, one hundred sixty-five thousand, six hundred thirty-one".