215655116 has 24 divisors (see below), whose sum is σ = 385088256. Its totient is φ = 105649040.

The previous prime is 215655109. The next prime is 215655119. The reversal of 215655116 is 611556512.

215655116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (215655119) 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, 45155 + ... + 49701.

It is an arithmetic number, because the mean of its divisors is an integer number (16045344).

Almost surely, 2^215655116 is an apocalyptic number.

It is an amenable number.

215655116 is a deficient number, since it is larger than the sum of its proper divisors (169433140).

215655116 is a wasteful number, since it uses less digits than its factorization.

215655116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789 (or 4787 counting only the distinct ones).

The product of its digits is 9000, while the sum is 32.

The square root of 215655116 is about 14685.2005774521. The cubic root of 215655116 is about 599.6804928518.

The spelling of 215655116 in words is "two hundred fifteen million, six hundred fifty-five thousand, one hundred sixteen".