11413503556 has 81 divisors (see below), whose sum is σ = 25202328669. Its totient is φ = 4507540128.

The previous prime is 11413503539. The next prime is 11413503559. The reversal of 11413503556 is 65530531411.

The square root of 11413503556 is 106834.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1688388100 + 9725115456 = 41090^2 + 98616^2 .

It is not an unprimeable number, because it can be changed into a prime (11413503559) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19443495 + ... + 19444081.

Almost surely, 2^11413503556 is an apocalyptic number.

11413503556 is the 106834-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11413503556

11413503556 is an abundant number, since it is smaller than the sum of its proper divisors (13788825113).

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

11413503556 is an equidigital number, since it uses as much as digits as its factorization.

11413503556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 11413503556 in words is "eleven billion, four hundred thirteen million, five hundred three thousand, five hundred fifty-six".