51600216458 has 12 divisors (see below), whose sum is σ = 90037112562. Its totient is φ = 22114378440.

The previous prime is 51600216439. The next prime is 51600216469. The reversal of 51600216458 is 85461200615.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32135223169 + 19464993289 = 179263^2 + 139517^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263266313 + ... + 263266508.

Almost surely, 2^51600216458 is an apocalyptic number.

51600216458 is a deficient number, since it is larger than the sum of its proper divisors (38436896104).

51600216458 is a wasteful number, since it uses less digits than its factorization.

51600216458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526532837 (or 526532830 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 51600216458 in words is "fifty-one billion, six hundred million, two hundred sixteen thousand, four hundred fifty-eight".