985415916665 has 16 divisors (see below), whose sum is σ = 1220896275456. Its totient is φ = 762745118400.

The previous prime is 985415916643. The next prime is 985415916671. The reversal of 985415916665 is 566619514589.

It is not a de Polignac number, because 985415916665 - 2¹⁰ = 985415915641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99524 + ... + 1407386.

It is an arithmetic number, because the mean of its divisors is an integer number (76306017216).

Almost surely, 2^985415916665 is an apocalyptic number.

It is an amenable number.

985415916665 is a deficient number, since it is larger than the sum of its proper divisors (235480358791).

985415916665 is a wasteful number, since it uses less digits than its factorization.

985415916665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312760.

The product of its digits is 69984000, while the sum is 65.

The spelling of 985415916665 in words is "nine hundred eighty-five billion, four hundred fifteen million, nine hundred sixteen thousand, six hundred sixty-five".