51466660305 has 16 divisors (see below), whose sum is σ = 86680691520. Its totient is φ = 26004207168.

The previous prime is 51466660283. The next prime is 51466660307. The reversal of 51466660305 is 50306666415.

It is not a de Polignac number, because 51466660305 - 2⁷ = 51466660177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51466660307) 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 in 15 ways as a sum of consecutive naturals, for example, 90292102 + ... + 90292671.

It is an arithmetic number, because the mean of its divisors is an integer number (5417543220).

Almost surely, 2^51466660305 is an apocalyptic number.

It is an amenable number.

51466660305 is a deficient number, since it is larger than the sum of its proper divisors (35214031215).

51466660305 is a wasteful number, since it uses less digits than its factorization.

51466660305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180584800.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 51466660305 in words is "fifty-one billion, four hundred sixty-six million, six hundred sixty thousand, three hundred five".