22061231643663 has 32 divisors (see below), whose sum is σ = 32919314400000. Its totient is φ = 14601289684896.

The previous prime is 22061231643629. The next prime is 22061231643697. The reversal of 22061231643663 is 36634613216022.

22061231643663 is a `hidden beast` number, since 2 + 2 + 0 + 6 + 123 + 164 + 366 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (22061231643629) and next prime (22061231643697).

It is not a de Polignac number, because 22061231643663 - 2¹⁷ = 22061231512591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22061231643623) 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 31 ways as a sum of consecutive naturals, for example, 234699408 + ... + 234793386.

It is an arithmetic number, because the mean of its divisors is an integer number (1028728575000).

Almost surely, 2^{22061231643663} is an apocalyptic number.

22061231643663 is a deficient number, since it is larger than the sum of its proper divisors (10858082756337).

22061231643663 is a wasteful number, since it uses less digits than its factorization.

22061231643663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156676 (or 156670 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

Adding to 22061231643663 its reverse (36634613216022), we get a palindrome (58695844859685).

The spelling of 22061231643663 in words is "twenty-two trillion, sixty-one billion, two hundred thirty-one million, six hundred forty-three thousand, six hundred sixty-three".