85223965056 has 128 divisors (see below), whose sum is σ = 233459884800. Its totient is φ = 27532646400.

The previous prime is 85223964937. The next prime is 85223965067. The reversal of 85223965056 is 65056932258.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent 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, 1582086 + ... + 1635066.

It is an arithmetic number, because the mean of its divisors is an integer number (1823905350).

Almost surely, 2^85223965056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85223965056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116729942400).

85223965056 is an abundant number, since it is smaller than the sum of its proper divisors (148235919744).

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

85223965056 is a wasteful number, since it uses less digits than its factorization.

85223965056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53128 (or 53116 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 85223965056 in words is "eighty-five billion, two hundred twenty-three million, nine hundred sixty-five thousand, fifty-six".