14636499221 has 2 divisors, whose sum is σ = 14636499222. Its totient is φ = 14636499220.

The previous prime is 14636499217. The next prime is 14636499233. The reversal of 14636499221 is 12299463641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14368816900 + 267682321 = 119870^2 + 16361^2 .

It is a cyclic number.

It is not a de Polignac number, because 14636499221 - 2² = 14636499217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14636499821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7318249610 + 7318249611.

It is an arithmetic number, because the mean of its divisors is an integer number (7318249611).

Almost surely, 2^14636499221 is an apocalyptic number.

It is an amenable number.

14636499221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14636499221 is an equidigital number, since it uses as much as digits as its factorization.

14636499221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The spelling of 14636499221 in words is "fourteen billion, six hundred thirty-six million, four hundred ninety-nine thousand, two hundred twenty-one".