85160778 has 16 divisors (see below), whose sum is σ = 172655616. Its totient is φ = 27997920.

The previous prime is 85160741. The next prime is 85160797. The reversal of 85160778 is 87706158.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96778 + ... + 97653.

It is an arithmetic number, because the mean of its divisors is an integer number (10790976).

Almost surely, 2^85160778 is an apocalyptic number.

85160778 is an abundant number, since it is smaller than the sum of its proper divisors (87494838).

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

85160778 is a wasteful number, since it uses less digits than its factorization.

85160778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194509.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 85160778 is about 9228.2597492702. The cubic root of 85160778 is about 439.9600135838.

The spelling of 85160778 in words is "eighty-five million, one hundred sixty thousand, seven hundred seventy-eight".