51116032000 has 240 divisors, whose sum is σ = 139241400480. Its totient is φ = 18579456000.

The previous prime is 51116031973. The next prime is 51116032001. The reversal of 51116032000 is 23061115.

It is a super-2 number, since 2×51116032000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51116032001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22526866 + ... + 22529134.

It is an arithmetic number, because the mean of its divisors is an integer number (580172502).

Almost surely, 2^51116032000 is an apocalyptic number.

51116032000 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 51116032000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69620700240).

51116032000 is an abundant number, since it is smaller than the sum of its proper divisors (88125368480).

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

51116032000 is an equidigital number, since it uses as much as digits as its factorization.

51116032000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 51116032000 its reverse (23061115), we get a palindrome (51139093115).

The spelling of 51116032000 in words is "fifty-one billion, one hundred sixteen million, thirty-two thousand".