216453414164 has 24 divisors (see below), whose sum is σ = 429401511840. Its totient is φ = 94643597664.

The previous prime is 216453414139. The next prime is 216453414179. The reversal of 216453414164 is 461414354612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109540214 + ... + 109542189.

It is an arithmetic number, because the mean of its divisors is an integer number (17891729660).

Almost surely, 2^216453414164 is an apocalyptic number.

It is an amenable number.

216453414164 is a deficient number, since it is larger than the sum of its proper divisors (212948097676).

216453414164 is a wasteful number, since it uses less digits than its factorization.

216453414164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219082439 (or 219082437 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

Adding to 216453414164 its reverse (461414354612), we get a palindrome (677867768776).

The spelling of 216453414164 in words is "two hundred sixteen billion, four hundred fifty-three million, four hundred fourteen thousand, one hundred sixty-four".