855510720 has 448 divisors, whose sum is σ = 3160166400. Its totient is φ = 194641920.

The previous prime is 855510713. The next prime is 855510727. The reversal of 855510720 is 27015558.

It is a happy number.

855510720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (855510713) and next prime (855510727).

It is not an unprimeable number, because it can be changed into a prime (855510727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9612436 + ... + 9612524.

Almost surely, 2^855510720 is an apocalyptic number.

855510720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855510720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580083200).

855510720 is an abundant number, since it is smaller than the sum of its proper divisors (2304655680).

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

855510720 is a wasteful number, since it uses less digits than its factorization.

855510720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 855510720 is about 29249.1148584021. The cubic root of 855510720 is about 949.3109389224.

The spelling of 855510720 in words is "eight hundred fifty-five million, five hundred ten thousand, seven hundred twenty".