13640265222 has 32 divisors (see below), whose sum is σ = 27590644224. Its totient is φ = 4495327200.

The previous prime is 13640265209. The next prime is 13640265239. The reversal of 13640265222 is 22256204631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180988 + ... + 245024.

It is an arithmetic number, because the mean of its divisors is an integer number (862207632).

Almost surely, 2^13640265222 is an apocalyptic number.

13640265222 is an abundant number, since it is smaller than the sum of its proper divisors (13950379002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13640265222 is a wasteful number, since it uses less digits than its factorization.

13640265222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64444.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 13640265222 its reverse (22256204631), we get a palindrome (35896469853).

The spelling of 13640265222 in words is "thirteen billion, six hundred forty million, two hundred sixty-five thousand, two hundred twenty-two".