85855015616 has 28 divisors (see below), whose sum is σ = 170533923600. Its totient is φ = 42885838080.

The previous prime is 85855015601. The next prime is 85855015681. The reversal of 85855015616 is 61651055858.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584591 + ... + 716558.

Almost surely, 2^85855015616 is an apocalyptic number.

It is an amenable number.

85855015616 is a deficient number, since it is larger than the sum of its proper divisors (84678907984).

85855015616 is a wasteful number, since it uses less digits than its factorization.

85855015616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302192 (or 1302182 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 50.

The spelling of 85855015616 in words is "eighty-five billion, eight hundred fifty-five million, fifteen thousand, six hundred sixteen".