216466345020236 has 6 divisors (see below), whose sum is σ = 378816103785420. Its totient is φ = 108233172510116.

The previous prime is 216466345020199. The next prime is 216466345020271. The reversal of 216466345020236 is 632020543664612.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27058293127526 + ... + 27058293127533.

It is an arithmetic number, because the mean of its divisors is an integer number (63136017297570).

Almost surely, 2^{216466345020236} is an apocalyptic number.

It is an amenable number.

216466345020236 is a deficient number, since it is larger than the sum of its proper divisors (162349758765184).

216466345020236 is a wasteful number, since it uses less digits than its factorization.

216466345020236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54116586255063 (or 54116586255061 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 50.

Adding to 216466345020236 its reverse (632020543664612), we get a palindrome (848486888684848).

The spelling of 216466345020236 in words is "two hundred sixteen trillion, four hundred sixty-six billion, three hundred forty-five million, twenty thousand, two hundred thirty-six".