51166646 has 8 divisors (see below), whose sum is σ = 78534984. Its totient is φ = 24988320.

The previous prime is 51166637. The next prime is 51166657. The reversal of 51166646 is 64666115.

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

It is a Curzon number.

It is a congruent number.

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, 297395 + ... + 297566.

It is an arithmetic number, because the mean of its divisors is an integer number (9816873).

Almost surely, 2^51166646 is an apocalyptic number.

51166646 is a deficient number, since it is larger than the sum of its proper divisors (27368338).

51166646 is a wasteful number, since it uses less digits than its factorization.

51166646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595006.

The product of its digits is 25920, while the sum is 35.

The square root of 51166646 is about 7153.0864666939. The cubic root of 51166646 is about 371.2464560723.

The spelling of 51166646 in words is "fifty-one million, one hundred sixty-six thousand, six hundred forty-six".