216115552236 has 24 divisors (see below), whose sum is σ = 504393361920. Its totient is φ = 72020840272.

The previous prime is 216115552229. The next prime is 216115552249. The reversal of 216115552236 is 632255511612.

It is a junction number, because it is equal to n+sod(n) for n = 216115552194 and 216115552203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2158656 + ... + 2256551.

It is an arithmetic number, because the mean of its divisors is an integer number (21016390080).

Almost surely, 2^216115552236 is an apocalyptic number.

It is an amenable number.

216115552236 is an abundant number, since it is smaller than the sum of its proper divisors (288277809684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216115552236 is a wasteful number, since it uses less digits than its factorization.

216115552236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419293 (or 4419291 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The spelling of 216115552236 in words is "two hundred sixteen billion, one hundred fifteen million, five hundred fifty-two thousand, two hundred thirty-six".