216171795 has 32 divisors (see below), whose sum is σ = 396168192. Its totient is φ = 98600832.

The previous prime is 216171727. The next prime is 216171817. The reversal of 216171795 is 597171612.

It is not a de Polignac number, because 216171795 - 2⁷ = 216171667 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50769 + ... + 54861.

It is an arithmetic number, because the mean of its divisors is an integer number (12380256).

Almost surely, 2^216171795 is an apocalyptic number.

216171795 is a deficient number, since it is larger than the sum of its proper divisors (179996397).

216171795 is a wasteful number, since it uses less digits than its factorization.

216171795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611.

The product of its digits is 26460, while the sum is 39.

The square root of 216171795 is about 14702.7818796308. The cubic root of 216171795 is about 600.1590272913.

The spelling of 216171795 in words is "two hundred sixteen million, one hundred seventy-one thousand, seven hundred ninety-five".