2126555244668 has 24 divisors (see below), whose sum is σ = 3785890604160. Its totient is φ = 1044903654720.

The previous prime is 2126555244661. The next prime is 2126555244683. The reversal of 2126555244668 is 8664425556212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126555244661) 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, 3658796 + ... + 4199987.

It is an arithmetic number, because the mean of its divisors is an integer number (157745441840).

Almost surely, 2^{2126555244668} is an apocalyptic number.

It is an amenable number.

2126555244668 is a deficient number, since it is larger than the sum of its proper divisors (1659335359492).

2126555244668 is a wasteful number, since it uses less digits than its factorization.

2126555244668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859957 (or 7859955 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 56.

The spelling of 2126555244668 in words is "two trillion, one hundred twenty-six billion, five hundred fifty-five million, two hundred forty-four thousand, six hundred sixty-eight".