51303421666224 has 960 divisors, whose sum is σ = 191230803778560. Its totient is φ = 12459525857280.

The previous prime is 51303421666207. The next prime is 51303421666247. The reversal of 51303421666224 is 42266612430315.

It is a self number, because there is not a number n which added to its sum of digits gives 51303421666224.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12040228254 + ... + 12040232514.

It is an arithmetic number, because the mean of its divisors is an integer number (199198753936).

Almost surely, 2^{51303421666224} 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 51303421666224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95615401889280).

51303421666224 is an abundant number, since it is smaller than the sum of its proper divisors (139927382112336).

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

51303421666224 is a wasteful number, since it uses less digits than its factorization.

51303421666224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658 (or 5649 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 51303421666224 in words is "fifty-one trillion, three hundred three billion, four hundred twenty-one million, six hundred sixty-six thousand, two hundred twenty-four".