11722052180 has 12 divisors (see below), whose sum is σ = 24616309620. Its totient is φ = 4688820864.

The previous prime is 11722052141. The next prime is 11722052207. The reversal of 11722052180 is 8125022711.

It can be written as a sum of positive squares in 2 ways, for example, as 7737665296 + 3984386884 = 87964^2 + 63122^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293051285 + ... + 293051324.

It is an arithmetic number, because the mean of its divisors is an integer number (2051359135).

Almost surely, 2^11722052180 is an apocalyptic number.

11722052180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11722052180 is an abundant number, since it is smaller than the sum of its proper divisors (12894257440).

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

11722052180 is a wasteful number, since it uses less digits than its factorization.

11722052180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586102618 (or 586102616 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

Adding to 11722052180 its reverse (8125022711), we get a palindrome (19847074891).

The spelling of 11722052180 in words is "eleven billion, seven hundred twenty-two million, fifty-two thousand, one hundred eighty".