66717227963 has 8 divisors (see below), whose sum is σ = 68273924928. Its totient is φ = 65160764424.

The previous prime is 66717227947. The next prime is 66717228043. The reversal of 66717227963 is 36972271766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66717227963 - 2⁴ = 66717227947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66717227899 and 66717227908.

It is not an unprimeable number, because it can be changed into a prime (66717227903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607520 + ... + 708882.

It is an arithmetic number, because the mean of its divisors is an integer number (8534240616).

Almost surely, 2^66717227963 is an apocalyptic number.

66717227963 is a deficient number, since it is larger than the sum of its proper divisors (1556696965).

66717227963 is a wasteful number, since it uses less digits than its factorization.

66717227963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116713.

The product of its digits is 8001504, while the sum is 56.

The spelling of 66717227963 in words is "sixty-six billion, seven hundred seventeen million, two hundred twenty-seven thousand, nine hundred sixty-three".