66846322364866 has 32 divisors (see below), whose sum is σ = 115821012379968. Its totient is φ = 28596933488640.

The previous prime is 66846322364863. The next prime is 66846322364869.

66846322364866 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (66846322364863) and next prime (66846322364869).

It is a junction number, because it is equal to n+sod(n) for n = 66846322364795 and 66846322364804.

It is not an unprimeable number, because it can be changed into a prime (66846322364863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24633741 + ... + 27212383.

It is an arithmetic number, because the mean of its divisors is an integer number (3619406636874).

Almost surely, 2^{66846322364866} is an apocalyptic number.

66846322364866 is a deficient number, since it is larger than the sum of its proper divisors (48974690015102).

66846322364866 is a wasteful number, since it uses less digits than its factorization.

66846322364866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647986.

The product of its digits is 1719926784, while the sum is 70.

The spelling of 66846322364866 in words is "sixty-six trillion, eight hundred forty-six billion, three hundred twenty-two million, three hundred sixty-four thousand, eight hundred sixty-six".