85220158444 has 12 divisors (see below), whose sum is σ = 150503491600. Its totient is φ = 42219160848.

The previous prime is 85220158423. The next prime is 85220158531. The reversal of 85220158444 is 44485102258.

It is a super-2 number, since 2×85220158444² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85220158444.

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, 97729104 + ... + 97729975.

Almost surely, 2^85220158444 is an apocalyptic number.

It is an amenable number.

85220158444 is a deficient number, since it is larger than the sum of its proper divisors (65283333156).

85220158444 is a wasteful number, since it uses less digits than its factorization.

85220158444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195459192 (or 195459190 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 43.

The spelling of 85220158444 in words is "eighty-five billion, two hundred twenty million, one hundred fifty-eight thousand, four hundred forty-four".