51634222243616 has 12 divisors (see below), whose sum is σ = 101654875042182. Its totient is φ = 25817111121792.

The previous prime is 51634222243607. The next prime is 51634222243673. The reversal of 51634222243616 is 61634222243615.

It can be written as a sum of positive squares in only one way, i.e., 29206458490000 + 22427763753616 = 5404300^2 + 4735796^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806784722525 + ... + 806784722588.

Almost surely, 2^{51634222243616} is an apocalyptic number.

It is an amenable number.

51634222243616 is a deficient number, since it is larger than the sum of its proper divisors (50020652798566).

51634222243616 is a wasteful number, since it uses less digits than its factorization.

51634222243616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613569445123 (or 1613569445115 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

Subtracting 51634222243616 from its reverse (61634222243615), we obtain a palindrome (9999999999999).

The spelling of 51634222243616 in words is "fifty-one trillion, six hundred thirty-four billion, two hundred twenty-two million, two hundred forty-three thousand, six hundred sixteen".