51666760200 has 384 divisors, whose sum is σ = 178702848000. Its totient is φ = 12242918400.

The previous prime is 51666760199. The next prime is 51666760219. The reversal of 51666760200 is 206766615.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 107863561 + ... + 107864039.

It is an arithmetic number, because the mean of its divisors is an integer number (465372000).

Almost surely, 2^51666760200 is an apocalyptic number.

51666760200 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 51666760200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89351424000).

51666760200 is an abundant number, since it is smaller than the sum of its proper divisors (127036087800).

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

51666760200 is a wasteful number, since it uses less digits than its factorization.

51666760200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 51666760200 in words is "fifty-one billion, six hundred sixty-six million, seven hundred sixty thousand, two hundred".