855806266 has 32 divisors (see below), whose sum is σ = 1504800000. Its totient is φ = 364872816.

The previous prime is 855806177. The next prime is 855806267. The reversal of 855806266 is 662608558.

It is not an unprimeable number, because it can be changed into a prime (855806267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133380 + ... + 139648.

It is an arithmetic number, because the mean of its divisors is an integer number (47025000).

Almost surely, 2^855806266 is an apocalyptic number.

855806266 is a deficient number, since it is larger than the sum of its proper divisors (648993734).

855806266 is a wasteful number, since it uses less digits than its factorization.

855806266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6491 (or 6477 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 855806266 is about 29254.1666434031. The cubic root of 855806266 is about 949.4202431241.

The spelling of 855806266 in words is "eight hundred fifty-five million, eight hundred six thousand, two hundred sixty-six".