211020659916 has 72 divisors (see below), whose sum is σ = 545106905280. Its totient is φ = 63485553120.

The previous prime is 211020659909. The next prime is 211020659917. The reversal of 211020659916 is 619956020112.

211020659916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211020659916² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211020659917) 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, 320946 + ... + 724601.

It is an arithmetic number, because the mean of its divisors is an integer number (7570929240).

Almost surely, 2^211020659916 is an apocalyptic number.

It is an amenable number.

211020659916 is an abundant number, since it is smaller than the sum of its proper divisors (334086245364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211020659916 is a wasteful number, since it uses less digits than its factorization.

211020659916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045715 (or 1045702 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 211020659916 in words is "two hundred eleven billion, twenty million, six hundred fifty-nine thousand, nine hundred sixteen".