666707373404 has 24 divisors (see below), whose sum is σ = 1168234005120. Its totient is φ = 332926345584.

The previous prime is 666707373401. The next prime is 666707373419. The reversal of 666707373404 is 404373707666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666707373401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38345297 + ... + 38362679.

It is an arithmetic number, because the mean of its divisors is an integer number (48676416880).

Almost surely, 2^666707373404 is an apocalyptic number.

It is an amenable number.

666707373404 is a deficient number, since it is larger than the sum of its proper divisors (501526631716).

666707373404 is a wasteful number, since it uses less digits than its factorization.

666707373404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29129 (or 29127 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 53.

The spelling of 666707373404 in words is "six hundred sixty-six billion, seven hundred seven million, three hundred seventy-three thousand, four hundred four".