855455616 has 96 divisors (see below), whose sum is σ = 2508288120. Its totient is φ = 279751680.

The previous prime is 855455603. The next prime is 855455647. The reversal of 855455616 is 616554558.

855455616 is a `hidden beast` number, since 85 + 5 + 4 + 5 + 561 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54051 + ... + 68061.

Almost surely, 2^855455616 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 855455616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254144060).

855455616 is an abundant number, since it is smaller than the sum of its proper divisors (1652832504).

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

855455616 is a wasteful number, since it uses less digits than its factorization.

855455616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14084 (or 14069 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 855455616 is about 29248.1728660099. The cubic root of 855455616 is about 949.2905565738.

The spelling of 855455616 in words is "eight hundred fifty-five million, four hundred fifty-five thousand, six hundred sixteen".