855665416 has 32 divisors (see below), whose sum is σ = 1662897600. Its totient is φ = 412283200.

The previous prime is 855665413. The next prime is 855665417. The reversal of 855665416 is 614566558.

It is not an unprimeable number, because it can be changed into a prime (855665413) 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, 127341 + ... + 133891.

It is an arithmetic number, because the mean of its divisors is an integer number (51965550).

Almost surely, 2^855665416 is an apocalyptic number.

It is an amenable number.

855665416 is a deficient number, since it is larger than the sum of its proper divisors (807232184).

855665416 is a wasteful number, since it uses less digits than its factorization.

855665416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149 (or 7145 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The square root of 855665416 is about 29251.7591949612. The cubic root of 855665416 is about 949.3681545524.

The spelling of 855665416 in words is "eight hundred fifty-five million, six hundred sixty-five thousand, four hundred sixteen".