22144426545672 has 128 divisors (see below), whose sum is σ = 67376551680000. Its totient is φ = 6707709969408.

The previous prime is 22144426545583. The next prime is 22144426545697. The reversal of 22144426545672 is 27654562444122.

22144426545672 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 4 + 4 + 26 + 54 + 567 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103869672 + ... + 104082647.

It is an arithmetic number, because the mean of its divisors is an integer number (526379310000).

Almost surely, 2^{22144426545672} is an apocalyptic number.

It is an amenable number.

22144426545672 is an abundant number, since it is smaller than the sum of its proper divisors (45232125134328).

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

22144426545672 is a wasteful number, since it uses less digits than its factorization.

22144426545672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207952380 (or 207952370 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 54.

Adding to 22144426545672 its reverse (27654562444122), we get a palindrome (49798988989794).

The spelling of 22144426545672 in words is "twenty-two trillion, one hundred forty-four billion, four hundred twenty-six million, five hundred forty-five thousand, six hundred seventy-two".