51120334320 has 160 divisors (see below), whose sum is σ = 173520036864. Its totient is φ = 12346905600.

The previous prime is 51120334217. The next prime is 51120334361. The reversal of 51120334320 is 2343302115.

51120334320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51120334320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 679714 + ... + 751166.

Almost surely, 2^51120334320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51120334320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86760018432).

51120334320 is an abundant number, since it is smaller than the sum of its proper divisors (122399702544).

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

51120334320 is a wasteful number, since it uses less digits than its factorization.

51120334320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71751 (or 71745 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 51120334320 its reverse (2343302115), we get a palindrome (53463636435).

The spelling of 51120334320 in words is "fifty-one billion, one hundred twenty million, three hundred thirty-four thousand, three hundred twenty".