660626626066 has 16 divisors (see below), whose sum is σ = 1101422095488. Its totient is φ = 294619078000.

The previous prime is 660626626063. The next prime is 660626626069.

660626626066 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (660626626063) and next prime (660626626069).

It is not an unprimeable number, because it can be changed into a prime (660626626063) 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 in 7 ways as a sum of consecutive naturals, for example, 283286410 + ... + 283288741.

It is an arithmetic number, because the mean of its divisors is an integer number (68838880968).

Almost surely, 2^660626626066 is an apocalyptic number.

660626626066 is a deficient number, since it is larger than the sum of its proper divisors (440795469422).

660626626066 is a wasteful number, since it uses less digits than its factorization.

660626626066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566575217.

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 660626626066 in words is "six hundred sixty billion, six hundred twenty-six million, six hundred twenty-six thousand, sixty-six".