22365154649 has 2 divisors, whose sum is σ = 22365154650. Its totient is φ = 22365154648.

The previous prime is 22365154589. The next prime is 22365154663. The reversal of 22365154649 is 94645156322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20379561049 + 1985593600 = 142757^2 + 44560^2 .

It is a cyclic number.

It is not a de Polignac number, because 22365154649 - 2⁸ = 22365154393 is a prime.

It is not a weakly prime, because it can be changed into another prime (22365154549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11182577324 + 11182577325.

It is an arithmetic number, because the mean of its divisors is an integer number (11182577325).

Almost surely, 2^22365154649 is an apocalyptic number.

It is an amenable number.

22365154649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22365154649 is an equidigital number, since it uses as much as digits as its factorization.

22365154649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 47.

The spelling of 22365154649 in words is "twenty-two billion, three hundred sixty-five million, one hundred fifty-four thousand, six hundred forty-nine".