51333151064 has 64 divisors (see below), whose sum is σ = 104432496000. Its totient is φ = 23654592000.

The previous prime is 51333151039. The next prime is 51333151081. The reversal of 51333151064 is 46015133315.

It is a self number, because there is not a number n which added to its sum of digits gives 51333151064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13197632 + ... + 13201520.

It is an arithmetic number, because the mean of its divisors is an integer number (1631757750).

Almost surely, 2^51333151064 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 51333151064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52216248000).

51333151064 is an abundant number, since it is smaller than the sum of its proper divisors (53099344936).

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

51333151064 is a wasteful number, since it uses less digits than its factorization.

51333151064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 51333151064 its reverse (46015133315), we get a palindrome (97348284379).

The spelling of 51333151064 in words is "fifty-one billion, three hundred thirty-three million, one hundred fifty-one thousand, sixty-four".