51660646054050 has 288 divisors, whose sum is σ = 144442541960640. Its totient is φ = 12203408448000.

The previous prime is 51660646054049. The next prime is 51660646054063. The reversal of 51660646054050 is 5045064606615.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 328490836 + ... + 328648064.

It is an arithmetic number, because the mean of its divisors is an integer number (501536604030).

Almost surely, 2^{51660646054050} is an apocalyptic number.

51660646054050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51660646054050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72221270980320).

51660646054050 is an abundant number, since it is smaller than the sum of its proper divisors (92781895906590).

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

51660646054050 is a wasteful number, since it uses less digits than its factorization.

51660646054050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157730 (or 157714 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 51660646054050 in words is "fifty-one trillion, six hundred sixty billion, six hundred forty-six million, fifty-four thousand, fifty".