22644135452143 has 8 divisors (see below), whose sum is σ = 22677847084800. Its totient is φ = 22610429981208.

The previous prime is 22644135452083. The next prime is 22644135452189. The reversal of 22644135452143 is 34125453144622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22644135452143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22644135452093 and 22644135452102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22644135452443) 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, 5841280 + ... + 8911162.

It is an arithmetic number, because the mean of its divisors is an integer number (2834730885600).

Almost surely, 2^{22644135452143} is an apocalyptic number.

22644135452143 is a deficient number, since it is larger than the sum of its proper divisors (33711632657).

22644135452143 is a wasteful number, since it uses less digits than its factorization.

22644135452143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080861.

The product of its digits is 2764800, while the sum is 46.

Adding to 22644135452143 its reverse (34125453144622), we get a palindrome (56769588596765).

It can be divided in two parts, 2264413 and 5452143, that added together give a triangular number (7716556 = T₃₉₂₈).

The spelling of 22644135452143 in words is "twenty-two trillion, six hundred forty-four billion, one hundred thirty-five million, four hundred fifty-two thousand, one hundred forty-three".