855116272 has 40 divisors (see below), whose sum is σ = 1733259600. Its totient is φ = 408156672.

The previous prime is 855116267. The next prime is 855116279. The reversal of 855116272 is 272611558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855116279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30943 + ... + 51649.

It is an arithmetic number, because the mean of its divisors is an integer number (43331490).

Almost surely, 2^855116272 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 855116272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866629800).

855116272 is an abundant number, since it is smaller than the sum of its proper divisors (878143328).

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

855116272 is a wasteful number, since it uses less digits than its factorization.

855116272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20833 (or 20827 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 855116272 is about 29242.3711760863. The cubic root of 855116272 is about 949.1650177564.

The spelling of 855116272 in words is "eight hundred fifty-five million, one hundred sixteen thousand, two hundred seventy-two".