216152166 has 32 divisors (see below), whose sum is σ = 436786560. Its totient is φ = 71308224.

The previous prime is 216152159. The next prime is 216152173. The reversal of 216152166 is 661251612.

It is an interprime number because it is at equal distance from previous prime (216152159) and next prime (216152173).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335841 + ... + 336483.

It is an arithmetic number, because the mean of its divisors is an integer number (13649580).

Almost surely, 2^216152166 is an apocalyptic number.

216152166 is an abundant number, since it is smaller than the sum of its proper divisors (220634394).

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

216152166 is a wasteful number, since it uses less digits than its factorization.

216152166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 4320, while the sum is 30.

The square root of 216152166 is about 14702.1143377407. The cubic root of 216152166 is about 600.1408613720.

The spelling of 216152166 in words is "two hundred sixteen million, one hundred fifty-two thousand, one hundred sixty-six".