51216112330333 has 6 divisors (see below), whose sum is σ = 53043084233594. Its totient is φ = 49450039490544.

The previous prime is 51216112330259. The next prime is 51216112330337. The reversal of 51216112330333 is 33303321161215.

It can be written as a sum of positive squares in 3 ways, for example, as 20118068590489 + 31098043739844 = 4485317^2 + 5576562^2 .

It is not a de Polignac number, because 51216112330333 - 2⁹ = 51216112329821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51216112330337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30449530866 + ... + 30449532547.

Almost surely, 2^{51216112330333} is an apocalyptic number.

It is an amenable number.

51216112330333 is a deficient number, since it is larger than the sum of its proper divisors (1826971903261).

51216112330333 is an equidigital number, since it uses as much as digits as its factorization.

51216112330333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60899063471 (or 60899063442 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

Adding to 51216112330333 its reverse (33303321161215), we get a palindrome (84519433491548).

The spelling of 51216112330333 in words is "fifty-one trillion, two hundred sixteen billion, one hundred twelve million, three hundred thirty thousand, three hundred thirty-three".