12615338148 has 24 divisors (see below), whose sum is σ = 33640901952. Its totient is φ = 3604382304.

The previous prime is 12615338147. The next prime is 12615338159. The reversal of 12615338148 is 84183351621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (12615338147) 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, 75091215 + ... + 75091382.

It is an arithmetic number, because the mean of its divisors is an integer number (1401704248).

Almost surely, 2^12615338148 is an apocalyptic number.

It is an amenable number.

12615338148 is an abundant number, since it is smaller than the sum of its proper divisors (21025563804).

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

12615338148 is a wasteful number, since it uses less digits than its factorization.

12615338148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150182611 (or 150182609 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

Adding to 12615338148 its reverse (84183351621), we get a palindrome (96798689769).

The spelling of 12615338148 in words is "twelve billion, six hundred fifteen million, three hundred thirty-eight thousand, one hundred forty-eight".