855413660 has 24 divisors (see below), whose sum is σ = 1797040896. Its totient is φ = 342037440.

The previous prime is 855413617. The next prime is 855413681. The reversal of 855413660 is 66314558.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61514 + ... + 74126.

It is an arithmetic number, because the mean of its divisors is an integer number (74876704).

Almost surely, 2^855413660 is an apocalyptic number.

It is an amenable number.

855413660 is an abundant number, since it is smaller than the sum of its proper divisors (941627236).

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

855413660 is a wasteful number, since it uses less digits than its factorization.

855413660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16013 (or 16011 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 855413660 is about 29247.4556158309. The cubic root of 855413660 is about 949.2750369353.

The spelling of 855413660 in words is "eight hundred fifty-five million, four hundred thirteen thousand, six hundred sixty".