66226073516517 has 32 divisors (see below), whose sum is σ = 90389331422208. Its totient is φ = 43120424549376.

The previous prime is 66226073516501. The next prime is 66226073516609. The reversal of 66226073516517 is 71561537062266.

It is not a de Polignac number, because 66226073516517 - 2⁴ = 66226073516501 is a prime.

It is a super-2 number, since 2×66226073516517² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66226073516017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12560698 + ... + 17035940.

It is an arithmetic number, because the mean of its divisors is an integer number (2824666606944).

Almost surely, 2^{66226073516517} is an apocalyptic number.

It is an amenable number.

66226073516517 is a deficient number, since it is larger than the sum of its proper divisors (24163257905691).

66226073516517 is a wasteful number, since it uses less digits than its factorization.

66226073516517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476009.

The product of its (nonzero) digits is 19051200, while the sum is 57.

The spelling of 66226073516517 in words is "sixty-six trillion, two hundred twenty-six billion, seventy-three million, five hundred sixteen thousand, five hundred seventeen".