20211611652211 has 48 divisors (see below), whose sum is σ = 24669244353600. Its totient is φ = 16217786769408.

The previous prime is 20211611652191. The next prime is 20211611652217. The reversal of 20211611652211 is 11225611611202.

It is not a de Polignac number, because 20211611652211 - 2²⁷ = 20211477434483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211611652217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2426651095 + ... + 2426659423.

It is an arithmetic number, because the mean of its divisors is an integer number (513942590700).

Almost surely, 2^{20211611652211} is an apocalyptic number.

20211611652211 is a deficient number, since it is larger than the sum of its proper divisors (4457632701389).

20211611652211 is a wasteful number, since it uses less digits than its factorization.

20211611652211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14656 (or 14639 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 20211611652211 in words is "twenty trillion, two hundred eleven billion, six hundred eleven million, six hundred fifty-two thousand, two hundred eleven".