855371660 has 192 divisors, whose sum is σ = 2274459264. Its totient is φ = 265420800.

The previous prime is 855371603. The next prime is 855371681. The reversal of 855371660 is 66173558.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3549140 + ... + 3549380.

It is an arithmetic number, because the mean of its divisors is an integer number (11846142).

Almost surely, 2^855371660 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 855371660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137229632).

855371660 is an abundant number, since it is smaller than the sum of its proper divisors (1419087604).

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

855371660 is a wasteful number, since it uses less digits than its factorization.

855371660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 855371660 is about 29246.7375958414. The cubic root of 855371660 is about 949.2595005128.

The spelling of 855371660 in words is "eight hundred fifty-five million, three hundred seventy-one thousand, six hundred sixty".