216207036776326 has 4 divisors (see below), whose sum is σ = 324310555164492. Its totient is φ = 108103518388162.

The previous prime is 216207036776293. The next prime is 216207036776369. The reversal of 216207036776326 is 623677630702612.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54051759194080 + ... + 54051759194083.

It is an arithmetic number, because the mean of its divisors is an integer number (81077638791123).

Almost surely, 2^{216207036776326} is an apocalyptic number.

216207036776326 is a deficient number, since it is larger than the sum of its proper divisors (108103518388166).

216207036776326 is a wasteful number, since it uses less digits than its factorization.

216207036776326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108103518388165.

The product of its (nonzero) digits is 32006016, while the sum is 58.

The spelling of 216207036776326 in words is "two hundred sixteen trillion, two hundred seven billion, thirty-six million, seven hundred seventy-six thousand, three hundred twenty-six".