51210332250664 has 16 divisors (see below), whose sum is σ = 96019453029600. Its totient is φ = 25605144776112.

The previous prime is 51210332250613. The next prime is 51210332250677. The reversal of 51210332250664 is 46605223301215.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12800319 + ... + 16317745.

It is an arithmetic number, because the mean of its divisors is an integer number (6001215814350).

Almost surely, 2^{51210332250664} is an apocalyptic number.

It is an amenable number.

51210332250664 is a deficient number, since it is larger than the sum of its proper divisors (44809120778936).

51210332250664 is a wasteful number, since it uses less digits than its factorization.

51210332250664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337312 (or 5337308 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 51210332250664 its reverse (46605223301215), we get a palindrome (97815555551879).

The spelling of 51210332250664 in words is "fifty-one trillion, two hundred ten billion, three hundred thirty-two million, two hundred fifty thousand, six hundred sixty-four".