845601216 has 112 divisors (see below), whose sum is σ = 2409626880. Its totient is φ = 260730880.

The previous prime is 845601209. The next prime is 845601247. The reversal of 845601216 is 612106548.

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, 190381 + ... + 194771.

Almost surely, 2^845601216 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 845601216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204813440).

845601216 is an abundant number, since it is smaller than the sum of its proper divisors (1564025664).

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

845601216 is a wasteful number, since it uses less digits than its factorization.

845601216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482 (or 4472 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 845601216 is about 29079.2230982879. The cubic root of 845601216 is about 945.6313599558.

The spelling of 845601216 in words is "eight hundred forty-five million, six hundred one thousand, two hundred sixteen".