5126166922816 has 63 divisors (see below), whose sum is σ = 10455960210339. Its totient is φ = 2493484904448.

The previous prime is 5126166922787. The next prime is 5126166922817. The reversal of 5126166922816 is 6182296616215.

It is a happy number.

The square root of 5126166922816 is 2264104.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 73094529600 + 5053072393216 = 270360^2 + 2247904^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5126166922817) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 670170960 + ... + 670178608.

Almost surely, 2^{5126166922816} is an apocalyptic number.

5126166922816 is the 2264104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5126166922816

5126166922816 is an abundant number, since it is smaller than the sum of its proper divisors (5329793287523).

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

5126166922816 is an frugal number, since it uses more digits than its factorization.

5126166922816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15384 (or 7688 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

The spelling of 5126166922816 in words is "five trillion, one hundred twenty-six billion, one hundred sixty-six million, nine hundred twenty-two thousand, eight hundred sixteen".