216636913796 has 48 divisors (see below), whose sum is σ = 398983347840. Its totient is φ = 102726074880.

The previous prime is 216636913783. The next prime is 216636913799. The reversal of 216636913796 is 697319636612.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (216636913799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5056055 + ... + 5098721.

It is an arithmetic number, because the mean of its divisors is an integer number (8312153080).

Almost surely, 2^216636913796 is an apocalyptic number.

It is an amenable number.

216636913796 is a deficient number, since it is larger than the sum of its proper divisors (182346434044).

216636913796 is a wasteful number, since it uses less digits than its factorization.

216636913796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43164 (or 43162 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 59.

The spelling of 216636913796 in words is "two hundred sixteen billion, six hundred thirty-six million, nine hundred thirteen thousand, seven hundred ninety-six".