85804221156 has 24 divisors (see below), whose sum is σ = 200724538560. Its totient is φ = 28527880032.

The previous prime is 85804221149. The next prime is 85804221313. The reversal of 85804221156 is 65112240858.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9186016 + ... + 9195351.

It is an arithmetic number, because the mean of its divisors is an integer number (8363522440).

Almost surely, 2^85804221156 is an apocalyptic number.

It is an amenable number.

85804221156 is an abundant number, since it is smaller than the sum of its proper divisors (114920317404).

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

85804221156 is a wasteful number, since it uses less digits than its factorization.

85804221156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18381763 (or 18381761 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 85804221156 in words is "eighty-five billion, eight hundred four million, two hundred twenty-one thousand, one hundred fifty-six".