216057195 has 24 divisors (see below), whose sum is σ = 376084800. Its totient is φ = 114742656.

The previous prime is 216057187. The next prime is 216057287. The reversal of 216057195 is 591750612.

216057195 is a `hidden beast` number, since 21 + 60 + 571 + 9 + 5 = 666.

216057195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216057195 - 2³ = 216057187 is a prime.

It is a super-2 number, since 2×216057195² = 93361423022536050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 711 + ... + 20799.

It is an arithmetic number, because the mean of its divisors is an integer number (15670200).

Almost surely, 2^216057195 is an apocalyptic number.

216057195 is a deficient number, since it is larger than the sum of its proper divisors (160027605).

216057195 is a wasteful number, since it uses less digits than its factorization.

216057195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20339 (or 20336 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 216057195 is about 14698.8841413217. The cubic root of 216057195 is about 600.0529536597.

The spelling of 216057195 in words is "two hundred sixteen million, fifty-seven thousand, one hundred ninety-five".