211165968 has 40 divisors (see below), whose sum is σ = 587476288. Its totient is φ = 64973952.

The previous prime is 211165963. The next prime is 211166029. The reversal of 211165968 is 869561112.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (211165961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168580 + ... + 169827.

Almost surely, 2^211165968 is an apocalyptic number.

It is an amenable number.

211165968 is an abundant number, since it is smaller than the sum of its proper divisors (376310320).

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

211165968 is a wasteful number, since it uses less digits than its factorization.

211165968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338431 (or 338425 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 211165968 is about 14531.5507775323. The cubic root of 211165968 is about 595.4902327016.

The spelling of 211165968 in words is "two hundred eleven million, one hundred sixty-five thousand, nine hundred sixty-eight".