665041070 has 32 divisors (see below), whose sum is σ = 1225812096. Its totient is φ = 259660800.

The previous prime is 665041061. The next prime is 665041073. The reversal of 665041070 is 70140566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665041073) 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 15 ways as a sum of consecutive naturals, for example, 196190 + ... + 199550.

It is an arithmetic number, because the mean of its divisors is an integer number (38306628).

Almost surely, 2^665041070 is an apocalyptic number.

665041070 is a deficient number, since it is larger than the sum of its proper divisors (560771026).

665041070 is a wasteful number, since it uses less digits than its factorization.

665041070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 665041070 is about 25788.3902173052. The cubic root of 665041070 is about 872.8698420843.

The spelling of 665041070 in words is "six hundred sixty-five million, forty-one thousand, seventy".