320215587085 has 16 divisors (see below), whose sum is σ = 410812286976. Its totient is φ = 238762683648.

The previous prime is 320215587071. The next prime is 320215587103. The reversal of 320215587085 is 580785512023.

It is not a de Polignac number, because 320215587085 - 2³⁵ = 285855848717 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 18278829 + ... + 18296338.

It is an arithmetic number, because the mean of its divisors is an integer number (25675767936).

Almost surely, 2^320215587085 is an apocalyptic number.

It is an amenable number.

320215587085 is a deficient number, since it is larger than the sum of its proper divisors (90596699891).

320215587085 is a wasteful number, since it uses less digits than its factorization.

320215587085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36575292.

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 320215587085 in words is "three hundred twenty billion, two hundred fifteen million, five hundred eighty-seven thousand, eighty-five".