22451215505144 has 16 divisors (see below), whose sum is σ = 42133987636200. Its totient is φ = 11215485468832.

The previous prime is 22451215505141. The next prime is 22451215505219. The reversal of 22451215505144 is 44150551215422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451215505141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265276042 + ... + 1265293785.

Almost surely, 2^{22451215505144} is an apocalyptic number.

It is an amenable number.

22451215505144 is a deficient number, since it is larger than the sum of its proper divisors (19682772131056).

22451215505144 is a wasteful number, since it uses less digits than its factorization.

22451215505144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530570942 (or 2530570938 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 41.

The spelling of 22451215505144 in words is "twenty-two trillion, four hundred fifty-one billion, two hundred fifteen million, five hundred five thousand, one hundred forty-four".