51206664521036 has 12 divisors (see below), whose sum is σ = 89614790155128. Its totient is φ = 25602438762432.

The previous prime is 51206664521017. The next prime is 51206664521039. The reversal of 51206664521036 is 63012546660215.

It is not an unprimeable number, because it can be changed into a prime (51206664521039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223245566 + ... + 223474821.

It is an arithmetic number, because the mean of its divisors is an integer number (7467899179594).

Almost surely, 2^{51206664521036} is an apocalyptic number.

It is an amenable number.

51206664521036 is a deficient number, since it is larger than the sum of its proper divisors (38408125634092).

51206664521036 is a wasteful number, since it uses less digits than its factorization.

51206664521036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446749048 (or 446749046 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 51206664521036 in words is "fifty-one trillion, two hundred six billion, six hundred sixty-four million, five hundred twenty-one thousand, thirty-six".