51616884435766 has 16 divisors (see below), whose sum is σ = 83573687129184. Its totient is φ = 23768158541184.

The previous prime is 51616884435761. The next prime is 51616884435799. The reversal of 51616884435766 is 66753448861615.

It is a junction number, because it is equal to n+sod(n) for n = 51616884435695 and 51616884435704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51616884435761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292442306 + ... + 2292464821.

It is an arithmetic number, because the mean of its divisors is an integer number (5223355445574).

Almost surely, 2^{51616884435766} is an apocalyptic number.

51616884435766 is a deficient number, since it is larger than the sum of its proper divisors (31956802693418).

51616884435766 is a wasteful number, since it uses less digits than its factorization.

51616884435766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584907575.

The product of its digits is 696729600, while the sum is 70.

The spelling of 51616884435766 in words is "fifty-one trillion, six hundred sixteen billion, eight hundred eighty-four million, four hundred thirty-five thousand, seven hundred sixty-six".