216926163 has 12 divisors (see below), whose sum is σ = 314124408. Its totient is φ = 144254400.

The previous prime is 216926159. The next prime is 216926183. The reversal of 216926163 is 361629612.

It is a happy number.

It is not a de Polignac number, because 216926163 - 2² = 216926159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216926123) 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, 26445 + ... + 33662.

It is an arithmetic number, because the mean of its divisors is an integer number (26177034).

Almost surely, 2^216926163 is an apocalyptic number.

216926163 is a deficient number, since it is larger than the sum of its proper divisors (97198245).

216926163 is a wasteful number, since it uses less digits than its factorization.

216926163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60514 (or 60511 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 216926163 is about 14728.4134583464. The cubic root of 216926163 is about 600.8563355675.

The spelling of 216926163 in words is "two hundred sixteen million, nine hundred twenty-six thousand, one hundred sixty-three".