51564263541116 has 144 divisors (see below), whose sum is σ = 96273628738560. Its totient is φ = 24134974617600.

The previous prime is 51564263541079. The next prime is 51564263541143. The reversal of 51564263541116 is 61114536246515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27297121100 + ... + 27297122988.

It is an arithmetic number, because the mean of its divisors is an integer number (668566866240).

Almost surely, 2^{51564263541116} is an apocalyptic number.

It is an amenable number.

51564263541116 is a deficient number, since it is larger than the sum of its proper divisors (44709365197444).

51564263541116 is a wasteful number, since it uses less digits than its factorization.

51564263541116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996 (or 2933 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 50.

The spelling of 51564263541116 in words is "fifty-one trillion, five hundred sixty-four billion, two hundred sixty-three million, five hundred forty-one thousand, one hundred sixteen".