51305340223360 has 64 divisors (see below), whose sum is σ = 122707056067200. Its totient is φ = 20512895477760.

The previous prime is 51305340223343. The next prime is 51305340223363. The reversal of 51305340223360 is 6332204350315.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51305340223363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16625520 + ... + 19468399.

It is an arithmetic number, because the mean of its divisors is an integer number (1917297751050).

Almost surely, 2^{51305340223360} is an apocalyptic number.

It is an amenable number.

51305340223360 is an abundant number, since it is smaller than the sum of its proper divisors (71401715843840).

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

51305340223360 is a wasteful number, since it uses less digits than its factorization.

51305340223360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36096159 (or 36096147 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 51305340223360 its reverse (6332204350315), we get a palindrome (57637544573675).

The spelling of 51305340223360 in words is "fifty-one trillion, three hundred five billion, three hundred forty million, two hundred twenty-three thousand, three hundred sixty".