51366266313 has 16 divisors (see below), whose sum is σ = 68596440000. Its totient is φ = 34190176320.

The previous prime is 51366266267. The next prime is 51366266317. The reversal of 51366266313 is 31366266315.

It is not a de Polignac number, because 51366266313 - 2¹⁴ = 51366249929 is a prime.

It is a super-2 number, since 2×51366266313² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51366266317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7757118 + ... + 7763736.

It is an arithmetic number, because the mean of its divisors is an integer number (4287277500).

Almost surely, 2^51366266313 is an apocalyptic number.

It is an amenable number.

51366266313 is a deficient number, since it is larger than the sum of its proper divisors (17230173687).

51366266313 is a wasteful number, since it uses less digits than its factorization.

51366266313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312.

The product of its digits is 349920, while the sum is 42.

It can be divided in two parts, 513662 and 66313, that added together give a palindrome (579975).

The spelling of 51366266313 in words is "fifty-one billion, three hundred sixty-six million, two hundred sixty-six thousand, three hundred thirteen".