22161711671 has 4 divisors (see below), whose sum is σ = 24176412744. Its totient is φ = 20147010600.

The previous prime is 22161711661. The next prime is 22161711721. The reversal of 22161711671 is 17611716122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22161711671 - 2¹⁰ = 22161710647 is a prime.

It is a super-2 number, since 2×22161711671² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161711641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007350520 + ... + 1007350541.

It is an arithmetic number, because the mean of its divisors is an integer number (6044103186).

Almost surely, 2^22161711671 is an apocalyptic number.

22161711671 is a deficient number, since it is larger than the sum of its proper divisors (2014701073).

22161711671 is a wasteful number, since it uses less digits than its factorization.

22161711671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014701072.

The product of its digits is 7056, while the sum is 35.

The spelling of 22161711671 in words is "twenty-two billion, one hundred sixty-one million, seven hundred eleven thousand, six hundred seventy-one".