845605548522 has 96 divisors (see below), whose sum is σ = 2173050996480. Its totient is φ = 232520117760.

The previous prime is 845605548461. The next prime is 845605548539. The reversal of 845605548522 is 225845506548.

845605548522 is a `hidden beast` number, since 8 + 4 + 5 + 6 + 0 + 554 + 85 + 2 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 764338 + ... + 1508450.

It is an arithmetic number, because the mean of its divisors is an integer number (22635947880).

Almost surely, 2^845605548522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845605548522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086525498240).

845605548522 is an abundant number, since it is smaller than the sum of its proper divisors (1327445447958).

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

845605548522 is a wasteful number, since it uses less digits than its factorization.

845605548522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744468 (or 744465 counting only the distinct ones).

The product of its (nonzero) digits is 15360000, while the sum is 54.

The spelling of 845605548522 in words is "eight hundred forty-five billion, six hundred five million, five hundred forty-eight thousand, five hundred twenty-two".