2145242224544 has 24 divisors (see below), whose sum is σ = 4226392995300. Its totient is φ = 1071872574976.

The previous prime is 2145242224529. The next prime is 2145242224613. The reversal of 2145242224544 is 4454222425412.

It can be written as a sum of positive squares in 2 ways, for example, as 1665287011600 + 479955212944 = 1290460^2 + 692788^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23345219 + ... + 23436930.

Almost surely, 2^{2145242224544} is an apocalyptic number.

It is an amenable number.

2145242224544 is a deficient number, since it is larger than the sum of its proper divisors (2081150770756).

2145242224544 is a wasteful number, since it uses less digits than its factorization.

2145242224544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46783592 (or 46783584 counting only the distinct ones).

The product of its digits is 819200, while the sum is 41.

Adding to 2145242224544 its reverse (4454222425412), we get a palindrome (6599464649956).

The spelling of 2145242224544 in words is "two trillion, one hundred forty-five billion, two hundred forty-two million, two hundred twenty-four thousand, five hundred forty-four".