855738216 has 64 divisors (see below), whose sum is σ = 2381083200. Its totient is φ = 284762304.

The previous prime is 855738211. The next prime is 855738223. The reversal of 855738216 is 612837558.

855738216 is a `hidden beast` number, since 8 + 557 + 3 + 82 + 16 = 666.

It is not an unprimeable number, because it can be changed into a prime (855738211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138015 + ... + 144081.

It is an arithmetic number, because the mean of its divisors is an integer number (37204425).

Almost surely, 2^855738216 is an apocalyptic number.

It is an amenable number.

855738216 is an abundant number, since it is smaller than the sum of its proper divisors (1525344984).

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

855738216 is a wasteful number, since it uses less digits than its factorization.

855738216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6735 (or 6725 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 855738216 is about 29253.0035380984. The cubic root of 855738216 is about 949.3950778647.

The spelling of 855738216 in words is "eight hundred fifty-five million, seven hundred thirty-eight thousand, two hundred sixteen".