51600115621000 has 256 divisors, whose sum is σ = 128708392550400. Its totient is φ = 19307629152000.

The previous prime is 51600115620997. The next prime is 51600115621027. The reversal of 51600115621000 is 12651100615.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51600115621000.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 509092327 + ... + 509193673.

It is an arithmetic number, because the mean of its divisors is an integer number (502767158400).

Almost surely, 2^{51600115621000} is an apocalyptic number.

51600115621000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51600115621000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64354196275200).

51600115621000 is an abundant number, since it is smaller than the sum of its proper divisors (77108276929400).

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

51600115621000 is a wasteful number, since it uses less digits than its factorization.

51600115621000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101725 (or 101711 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 51600115621000 its reverse (12651100615), we get a palindrome (51612766721615).

The spelling of 51600115621000 in words is "fifty-one trillion, six hundred billion, one hundred fifteen million, six hundred twenty-one thousand".