51340100665632 has 96 divisors (see below), whose sum is σ = 134851781655360. Its totient is φ = 17102700979200.

The previous prime is 51340100665603. The next prime is 51340100665643. The reversal of 51340100665632 is 23656600104315.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352353083 + ... + 1352391045.

It is an arithmetic number, because the mean of its divisors is an integer number (1404706058910).

Almost surely, 2^{51340100665632} is an apocalyptic number.

It is an amenable number.

51340100665632 is an abundant number, since it is smaller than the sum of its proper divisors (83511680989728).

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

51340100665632 is a wasteful number, since it uses less digits than its factorization.

51340100665632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46386 (or 46378 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 51340100665632 its reverse (23656600104315), we get a palindrome (74996700769947).

The spelling of 51340100665632 in words is "fifty-one trillion, three hundred forty billion, one hundred million, six hundred sixty-five thousand, six hundred thirty-two".