855066672 has 40 divisors (see below), whose sum is σ = 2454359280. Its totient is φ = 285022080.

The previous prime is 855066631. The next prime is 855066677. The reversal of 855066672 is 276660558.

It is a super-2 number, since 2×855066672² = 1462278027130311168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855066677) 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, 989229 + ... + 990092.

It is an arithmetic number, because the mean of its divisors is an integer number (61358982).

Almost surely, 2^855066672 is an apocalyptic number.

It is an amenable number.

855066672 is an abundant number, since it is smaller than the sum of its proper divisors (1599292608).

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

855066672 is a wasteful number, since it uses less digits than its factorization.

855066672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979338 (or 1979326 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 855066672 is about 29241.5230793473. The cubic root of 855066672 is about 949.1466656731.

The spelling of 855066672 in words is "eight hundred fifty-five million, sixty-six thousand, six hundred seventy-two".