12615136322 has 16 divisors (see below), whose sum is σ = 18989035200. Its totient is φ = 6285496560.

The previous prime is 12615136307. The next prime is 12615136327. The reversal of 12615136322 is 22363151621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12615136327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687179 + ... + 705297.

It is an arithmetic number, because the mean of its divisors is an integer number (1186814700).

Almost surely, 2^12615136322 is an apocalyptic number.

12615136322 is a deficient number, since it is larger than the sum of its proper divisors (6373898878).

12615136322 is a wasteful number, since it uses less digits than its factorization.

12615136322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19321.

The product of its digits is 12960, while the sum is 32.

Adding to 12615136322 its reverse (22363151621), we get a palindrome (34978287943).

The spelling of 12615136322 in words is "twelve billion, six hundred fifteen million, one hundred thirty-six thousand, three hundred twenty-two".