51167323000 has 128 divisors (see below), whose sum is σ = 126191520000. Its totient is φ = 19365379200.

The previous prime is 51167322937. The next prime is 51167323001. The reversal of 51167323000 is 32376115.

It is a self number, because there is not a number n which added to its sum of digits gives 51167323000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51167323001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24375951 + ... + 24378049.

It is an arithmetic number, because the mean of its divisors is an integer number (985871250).

Almost surely, 2^51167323000 is an apocalyptic number.

51167323000 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 51167323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63095760000).

51167323000 is an abundant number, since it is smaller than the sum of its proper divisors (75024197000).

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

51167323000 is a wasteful number, since it uses less digits than its factorization.

51167323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422 (or 3408 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 51167323000 its reverse (32376115), we get a palindrome (51199699115).

The spelling of 51167323000 in words is "fifty-one billion, one hundred sixty-seven million, three hundred twenty-three thousand".