21133162067 has 2 divisors, whose sum is σ = 21133162068. Its totient is φ = 21133162066.

The previous prime is 21133162049. The next prime is 21133162073. The reversal of 21133162067 is 76026133112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21133162067 - 2¹² = 21133157971 is a prime.

It is a super-2 number, since 2×21133162067² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21133162007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566581033 + 10566581034.

It is an arithmetic number, because the mean of its divisors is an integer number (10566581034).

Almost surely, 2^21133162067 is an apocalyptic number.

21133162067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133162067 is an equidigital number, since it uses as much as digits as its factorization.

21133162067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 21133162067 its reverse (76026133112), we get a palindrome (97159295179).

The spelling of 21133162067 in words is "twenty-one billion, one hundred thirty-three million, one hundred sixty-two thousand, sixty-seven".