51166704338 has 8 divisors (see below), whose sum is σ = 76775304060. Its totient is φ = 25574936320.

The previous prime is 51166704313. The next prime is 51166704353. The reversal of 51166704338 is 83340766115.

It can be written as a sum of positive squares in 2 ways, for example, as 30207482809 + 20959221529 = 173803^2 + 144773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4200323 + ... + 4212486.

Almost surely, 2^51166704338 is an apocalyptic number.

51166704338 is a deficient number, since it is larger than the sum of its proper divisors (25608599722).

51166704338 is a wasteful number, since it uses less digits than its factorization.

51166704338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8415852.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 51166704338 in words is "fifty-one billion, one hundred sixty-six million, seven hundred four thousand, three hundred thirty-eight".