66351415363 has 2 divisors, whose sum is σ = 66351415364. Its totient is φ = 66351415362.

The previous prime is 66351415357. The next prime is 66351415393. The reversal of 66351415363 is 36351415366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66351415363 is a prime.

It is not a weakly prime, because it can be changed into another prime (66351415393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33175707681 + 33175707682.

It is an arithmetic number, because the mean of its divisors is an integer number (33175707682).

Almost surely, 2^66351415363 is an apocalyptic number.

66351415363 is a deficient number, since it is larger than the sum of its proper divisors (1).

66351415363 is an equidigital number, since it uses as much as digits as its factorization.

66351415363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 43.

The spelling of 66351415363 in words is "sixty-six billion, three hundred fifty-one million, four hundred fifteen thousand, three hundred sixty-three".