216161614 has 32 divisors (see below), whose sum is σ = 337486176. Its totient is φ = 103795200.

The previous prime is 216161587. The next prime is 216161623. The reversal of 216161614 is 416161612.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1577754 + ... + 1577890.

It is an arithmetic number, because the mean of its divisors is an integer number (10546443).

Almost surely, 2^216161614 is an apocalyptic number.

216161614 is a deficient number, since it is larger than the sum of its proper divisors (121324562).

216161614 is a wasteful number, since it uses less digits than its factorization.

216161614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its digits is 1728, while the sum is 28.

The square root of 216161614 is about 14702.4356485584. The cubic root of 216161614 is about 600.1496052866.

The spelling of 216161614 in words is "two hundred sixteen million, one hundred sixty-one thousand, six hundred fourteen".