855651080 has 64 divisors (see below), whose sum is σ = 1973723760. Its totient is φ = 333718528.

The previous prime is 855651079. The next prime is 855651091. The reversal of 855651080 is 80156558.

It can be written as a sum of positive squares in 8 ways, for example, as 597020356 + 258630724 = 24434^2 + 16082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365594 + ... + 367926.

Almost surely, 2^855651080 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 855651080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986861880).

855651080 is an abundant number, since it is smaller than the sum of its proper divisors (1118072680).

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

855651080 is a wasteful number, since it uses less digits than its factorization.

855651080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 855651080 is about 29251.5141488436. The cubic root of 855651080 is about 949.3628525509.

The spelling of 855651080 in words is "eight hundred fifty-five million, six hundred fifty-one thousand, eighty".