51566011435218 has 64 divisors (see below), whose sum is σ = 118767789093888. Its totient is φ = 14620324080960.

The previous prime is 51566011435217. The next prime is 51566011435249. The reversal of 51566011435218 is 81253411066515.

51566011435218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51566011435217) 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 31 ways as a sum of consecutive naturals, for example, 296564421 + ... + 296738247.

It is an arithmetic number, because the mean of its divisors is an integer number (1855746704592).

Almost surely, 2^{51566011435218} is an apocalyptic number.

51566011435218 is an abundant number, since it is smaller than the sum of its proper divisors (67201777658670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51566011435218 is a wasteful number, since it uses less digits than its factorization.

51566011435218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227887.

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 51566011435218 in words is "fifty-one trillion, five hundred sixty-six billion, eleven million, four hundred thirty-five thousand, two hundred eighteen".