22145132756 has 12 divisors (see below), whose sum is σ = 41033628468. Its totient is φ = 10421238912.

The previous prime is 22145132693. The next prime is 22145132761. The reversal of 22145132756 is 65723154122.

It can be written as a sum of positive squares in 2 ways, for example, as 19390562500 + 2754570256 = 139250^2 + 52484^2 .

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, 162831791 + ... + 162831926.

It is an arithmetic number, because the mean of its divisors is an integer number (3419469039).

Almost surely, 2^22145132756 is an apocalyptic number.

It is an amenable number.

22145132756 is a deficient number, since it is larger than the sum of its proper divisors (18888495712).

22145132756 is a wasteful number, since it uses less digits than its factorization.

22145132756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325663738 (or 325663736 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

Adding to 22145132756 its reverse (65723154122), we get a palindrome (87868286878).

The spelling of 22145132756 in words is "twenty-two billion, one hundred forty-five million, one hundred thirty-two thousand, seven hundred fifty-six".