85320444000 has 384 divisors, whose sum is σ = 305678790144. Its totient is φ = 20632320000.

The previous prime is 85320443993. The next prime is 85320444061. The reversal of 85320444000 is 44402358.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105203595 + ... + 105204405.

It is an arithmetic number, because the mean of its divisors is an integer number (796038516).

Almost surely, 2^85320444000 is an apocalyptic number.

85320444000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85320444000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152839395072).

85320444000 is an abundant number, since it is smaller than the sum of its proper divisors (220358346144).

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

85320444000 is a wasteful number, since it uses less digits than its factorization.

85320444000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 85320444000 its reverse (44402358), we get a palindrome (85364846358).

The spelling of 85320444000 in words is "eighty-five billion, three hundred twenty million, four hundred forty-four thousand".