51223965167796 has 24 divisors (see below), whose sum is σ = 120639618902880. Its totient is φ = 16915078840032.

The previous prime is 51223965167741. The next prime is 51223965167801. The reversal of 51223965167796 is 69776156932215.

51223965167796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51223965167796.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19947025651 + ... + 19947028218.

It is an arithmetic number, because the mean of its divisors is an integer number (5026650787620).

Almost surely, 2^{51223965167796} is an apocalyptic number.

It is an amenable number.

51223965167796 is an abundant number, since it is smaller than the sum of its proper divisors (69415653735084).

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

51223965167796 is a wasteful number, since it uses less digits than its factorization.

51223965167796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39894053983 (or 39894053981 counting only the distinct ones).

The product of its digits is 257191200, while the sum is 69.

The spelling of 51223965167796 in words is "fifty-one trillion, two hundred twenty-three billion, nine hundred sixty-five million, one hundred sixty-seven thousand, seven hundred ninety-six".