51094455166 has 4 divisors (see below), whose sum is σ = 76641682752. Its totient is φ = 25547227582.

The previous prime is 51094455163. The next prime is 51094455187. The reversal of 51094455166 is 66155449015.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×51094455166² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51094455163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12773613790 + ... + 12773613793.

It is an arithmetic number, because the mean of its divisors is an integer number (19160420688).

Almost surely, 2^51094455166 is an apocalyptic number.

51094455166 is a deficient number, since it is larger than the sum of its proper divisors (25547227586).

51094455166 is a wasteful number, since it uses less digits than its factorization.

51094455166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25547227585.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 51094455166 in words is "fifty-one billion, ninety-four million, four hundred fifty-five thousand, one hundred sixty-six".