51165416347 has 2 divisors, whose sum is σ = 51165416348. Its totient is φ = 51165416346.

The previous prime is 51165416339. The next prime is 51165416453. The reversal of 51165416347 is 74361456115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51165416347 - 2³ = 51165416339 is a prime.

It is not a weakly prime, because it can be changed into another prime (51165416147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25582708173 + 25582708174.

It is an arithmetic number, because the mean of its divisors is an integer number (25582708174).

Almost surely, 2^51165416347 is an apocalyptic number.

51165416347 is a deficient number, since it is larger than the sum of its proper divisors (1).

51165416347 is an equidigital number, since it uses as much as digits as its factorization.

51165416347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The spelling of 51165416347 in words is "fifty-one billion, one hundred sixty-five million, four hundred sixteen thousand, three hundred forty-seven".