22646040029 has 2 divisors, whose sum is σ = 22646040030. Its totient is φ = 22646040028.

The previous prime is 22646039993. The next prime is 22646040059. The reversal of 22646040029 is 92004064622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15110063929 + 7535976100 = 122923^2 + 86810^2 .

It is a cyclic number.

It is not a de Polignac number, because 22646040029 - 2¹² = 22646035933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22646040059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11323020014 + 11323020015.

It is an arithmetic number, because the mean of its divisors is an integer number (11323020015).

Almost surely, 2^22646040029 is an apocalyptic number.

It is an amenable number.

22646040029 is a deficient number, since it is larger than the sum of its proper divisors (1).

22646040029 is an equidigital number, since it uses as much as digits as its factorization.

22646040029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 22646040029 in words is "twenty-two billion, six hundred forty-six million, forty thousand, twenty-nine".