85039450016 has 72 divisors (see below), whose sum is σ = 175930678980. Its totient is φ = 40458756096.

The previous prime is 85039450009. The next prime is 85039450031. The reversal of 85039450016 is 61005493058.

It can be written as a sum of positive squares in 2 ways, for example, as 70447776400 + 14591673616 = 265420^2 + 120796^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3254090 + ... + 3280118.

Almost surely, 2^85039450016 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 85039450016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87965339490).

85039450016 is an abundant number, since it is smaller than the sum of its proper divisors (90891228964).

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

85039450016 is a wasteful number, since it uses less digits than its factorization.

85039450016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26278 (or 26247 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 85039450016 in words is "eighty-five billion, thirty-nine million, four hundred fifty thousand, sixteen".