51166004243 has 8 divisors (see below), whose sum is σ = 52445657040. Its totient is φ = 49887861120.

The previous prime is 51166004233. The next prime is 51166004251. The reversal of 51166004243 is 34240066115.

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

It is a cyclic number.

It is not a de Polignac number, because 51166004243 - 2⁶ = 51166004179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51166004213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308633 + ... + 444506.

It is an arithmetic number, because the mean of its divisors is an integer number (6555707130).

Almost surely, 2^51166004243 is an apocalyptic number.

51166004243 is a deficient number, since it is larger than the sum of its proper divisors (1279652797).

51166004243 is a wasteful number, since it uses less digits than its factorization.

51166004243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754837.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 51166004243 in words is "fifty-one billion, one hundred sixty-six million, four thousand, two hundred forty-three".