2126223006544 has 60 divisors (see below), whose sum is σ = 5160763833204. Its totient is φ = 841143163392.

The previous prime is 2126223006529. The next prime is 2126223006547. The reversal of 2126223006544 is 4456003226212.

It can be written as a sum of positive squares in 2 ways, for example, as 775653626944 + 1350569379600 = 880712^2 + 1162140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126223006547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104298237 + ... + 104318620.

Almost surely, 2^{2126223006544} is an apocalyptic number.

It is an amenable number.

2126223006544 is an abundant number, since it is smaller than the sum of its proper divisors (3034540826660).

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

2126223006544 is a wasteful number, since it uses less digits than its factorization.

2126223006544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208616892 (or 208616879 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 2126223006544 in words is "two trillion, one hundred twenty-six billion, two hundred twenty-three million, six thousand, five hundred forty-four".