216211686726141 has 24 divisors (see below), whose sum is σ = 313828287500000. Its totient is φ = 143440079336352.

The previous prime is 216211686726107. The next prime is 216211686726157. The reversal of 216211686726141 is 141627686112612.

216211686726141 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 1 + 16 + 8 + 6 + 7 + 2 + 614 + 1 = 666.

216211686726141 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216211686726141 - 2²³ = 216211678337533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216211686726181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67405891 + ... + 70540608.

Almost surely, 2^{216211686726141} is an apocalyptic number.

It is an amenable number.

216211686726141 is a deficient number, since it is larger than the sum of its proper divisors (97616600773859).

216211686726141 is a wasteful number, since it uses less digits than its factorization.

216211686726141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137947353 (or 137947350 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 216211686726141 in words is "two hundred sixteen trillion, two hundred eleven billion, six hundred eighty-six million, seven hundred twenty-six thousand, one hundred forty-one".