51174271330560 has 864 divisors, whose sum is σ = 212567752051200. Its totient is φ = 11113262088192.

The previous prime is 51174271330493. The next prime is 51174271330573. The reversal of 51174271330560 is 6503317247115.

51174271330560 is a `hidden beast` number, since 5 + 1 + 1 + 7 + 42 + 7 + 13 + 30 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 276260692 + ... + 276445868.

It is an arithmetic number, because the mean of its divisors is an integer number (246027490800).

Almost surely, 2^{51174271330560} 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 51174271330560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106283876025600).

51174271330560 is an abundant number, since it is smaller than the sum of its proper divisors (161393480720640).

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

51174271330560 is a wasteful number, since it uses less digits than its factorization.

51174271330560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185383 (or 185366 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

Adding to 51174271330560 its reverse (6503317247115), we get a palindrome (57677588577675).

The spelling of 51174271330560 in words is "fifty-one trillion, one hundred seventy-four billion, two hundred seventy-one million, three hundred thirty thousand, five hundred sixty".