616917811311 has 6 divisors (see below), whose sum is σ = 891103505240. Its totient is φ = 411278540868.

The previous prime is 616917811183. The next prime is 616917811361. The reversal of 616917811311 is 113118719616.

616917811311 is a `hidden beast` number, since 6 + 169 + 178 + 1 + 1 + 311 = 666.

616917811311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 616917811311 - 2⁷ = 616917811183 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 (616917811361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34273211731 + ... + 34273211748.

Almost surely, 2^616917811311 is an apocalyptic number.

616917811311 is a deficient number, since it is larger than the sum of its proper divisors (274185693929).

616917811311 is a wasteful number, since it uses less digits than its factorization.

616917811311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68546423485 (or 68546423482 counting only the distinct ones).

The product of its digits is 54432, while the sum is 45.

The spelling of 616917811311 in words is "six hundred sixteen billion, nine hundred seventeen million, eight hundred eleven thousand, three hundred eleven".