13420244552 has 96 divisors (see below), whose sum is σ = 29922526200. Its totient is φ = 5605079040.

The previous prime is 13420244501. The next prime is 13420244633. The reversal of 13420244552 is 25544202431.

It can be written as a sum of positive squares in 4 ways, for example, as 9831515716 + 3588728836 = 99154^2 + 59906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2879408 + ... + 2884064.

Almost surely, 2^13420244552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13420244552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14961263100).

13420244552 is an abundant number, since it is smaller than the sum of its proper divisors (16502281648).

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

13420244552 is a wasteful number, since it uses less digits than its factorization.

13420244552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 13420244552 its reverse (25544202431), we get a palindrome (38964446983).

The spelling of 13420244552 in words is "thirteen billion, four hundred twenty million, two hundred forty-four thousand, five hundred fifty-two".