216662105 has 16 divisors (see below), whose sum is σ = 284174784. Its totient is φ = 157270080.

The previous prime is 216662099. The next prime is 216662123. The reversal of 216662105 is 501266612.

It is not a de Polignac number, because 216662105 - 2⁸ = 216661849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27467 + ... + 34463.

It is an arithmetic number, because the mean of its divisors is an integer number (17760924).

Almost surely, 2^216662105 is an apocalyptic number.

It is an amenable number.

216662105 is a deficient number, since it is larger than the sum of its proper divisors (67512679).

216662105 is a wasteful number, since it uses less digits than its factorization.

216662105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 216662105 is about 14719.4464909520. The cubic root of 216662105 is about 600.6124348451.

The spelling of 216662105 in words is "two hundred sixteen million, six hundred sixty-two thousand, one hundred five".