665434850070 has 16 divisors (see below), whose sum is σ = 1597043640240. Its totient is φ = 177449293344.

The previous prime is 665434850039. The next prime is 665434850089. The reversal of 665434850070 is 70058434566.

It is a congruent number.

It is an unprimeable number.

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, 11090580805 + ... + 11090580864.

It is an arithmetic number, because the mean of its divisors is an integer number (99815227515).

Almost surely, 2^665434850070 is an apocalyptic number.

665434850070 is an abundant number, since it is smaller than the sum of its proper divisors (931608790170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665434850070 is a wasteful number, since it uses less digits than its factorization.

665434850070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22181161679.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 665434850070 in words is "six hundred sixty-five billion, four hundred thirty-four million, eight hundred fifty thousand, seventy".