22239659906 has 8 divisors (see below), whose sum is σ = 33383650044. Its totient is φ = 11111776560.

The previous prime is 22239659903. The next prime is 22239659917. The reversal of 22239659906 is 60995693222.

It can be written as a sum of positive squares in 2 ways, for example, as 20853959281 + 1385700625 = 144409^2 + 37225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22239659903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4023245 + ... + 4028768.

Almost surely, 2^22239659906 is an apocalyptic number.

22239659906 is a deficient number, since it is larger than the sum of its proper divisors (11143990138).

22239659906 is a wasteful number, since it uses less digits than its factorization.

22239659906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053396.

The product of its (nonzero) digits is 3149280, while the sum is 53.

The spelling of 22239659906 in words is "twenty-two billion, two hundred thirty-nine million, six hundred fifty-nine thousand, nine hundred six".