51500105160 has 128 divisors (see below), whose sum is σ = 176736487680. Its totient is φ = 11760473088.

The previous prime is 51500105119. The next prime is 51500105177. The reversal of 51500105160 is 6150100515.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51500105160.

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, 890074 + ... + 946166.

It is an arithmetic number, because the mean of its divisors is an integer number (1380753810).

Almost surely, 2^51500105160 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 51500105160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88368243840).

51500105160 is an abundant number, since it is smaller than the sum of its proper divisors (125236382520).

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

51500105160 is a wasteful number, since it uses less digits than its factorization.

51500105160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57207 (or 57203 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 51500105160 its reverse (6150100515), we get a palindrome (57650205675).

The spelling of 51500105160 in words is "fifty-one billion, five hundred million, one hundred five thousand, one hundred sixty".