211162025612165 has 24 divisors (see below), whose sum is σ = 269233069447680. Its totient is φ = 158959337603328.

The previous prime is 211162025612113. The next prime is 211162025612261. The reversal of 211162025612165 is 561216520261112.

It is not a de Polignac number, because 211162025612165 - 2¹⁶ = 211162025546629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8364845 + ... + 22187714.

It is an arithmetic number, because the mean of its divisors is an integer number (11218044560320).

Almost surely, 2^{211162025612165} is an apocalyptic number.

It is an amenable number.

211162025612165 is a deficient number, since it is larger than the sum of its proper divisors (58071043835515).

211162025612165 is a wasteful number, since it uses less digits than its factorization.

211162025612165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30557381 (or 30557364 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

Adding to 211162025612165 its reverse (561216520261112), we get a palindrome (772378545873277).

The spelling of 211162025612165 in words is "two hundred eleven trillion, one hundred sixty-two billion, twenty-five million, six hundred twelve thousand, one hundred sixty-five".