660436634066 has 32 divisors (see below), whose sum is σ = 1103798845440. Its totient is φ = 293787197200.

The previous prime is 660436634063. The next prime is 660436634129.

660436634066 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (660436634063) 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 15 ways as a sum of consecutive naturals, for example, 20033825 + ... + 20066763.

It is an arithmetic number, because the mean of its divisors is an integer number (34493713920).

Almost surely, 2^660436634066 is an apocalyptic number.

660436634066 is a deficient number, since it is larger than the sum of its proper divisors (443362211374).

660436634066 is a wasteful number, since it uses less digits than its factorization.

660436634066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52390.

The product of its (nonzero) digits is 6718464, while the sum is 50.

The spelling of 660436634066 in words is "six hundred sixty billion, four hundred thirty-six million, six hundred thirty-four thousand, sixty-six".