216490167 has 12 divisors (see below), whose sum is σ = 315805464. Its totient is φ = 142897200.

The previous prime is 216490163. The next prime is 216490171. The reversal of 216490167 is 761094612.

216490167 is a `hidden beast` number, since 2 + 1 + 6 + 490 + 167 = 666.

It is an interprime number because it is at equal distance from previous prime (216490163) and next prime (216490171).

It is not a de Polignac number, because 216490167 - 2² = 216490163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216490163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118173 + ... + 119990.

It is an arithmetic number, because the mean of its divisors is an integer number (26317122).

Almost surely, 2^216490167 is an apocalyptic number.

216490167 is a deficient number, since it is larger than the sum of its proper divisors (99315297).

216490167 is a wasteful number, since it uses less digits than its factorization.

216490167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238270 (or 238267 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 216490167 is about 14713.6048268261. The cubic root of 216490167 is about 600.4535154532.

The spelling of 216490167 in words is "two hundred sixteen million, four hundred ninety thousand, one hundred sixty-seven".