21514044011167 has 2 divisors, whose sum is σ = 21514044011168. Its totient is φ = 21514044011166.

The previous prime is 21514044011147. The next prime is 21514044011179. The reversal of 21514044011167 is 76111044041512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21514044011167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21514044011147) 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 as a sum of consecutive naturals, namely, 10757022005583 + 10757022005584.

It is an arithmetic number, because the mean of its divisors is an integer number (10757022005584).

Almost surely, 2^{21514044011167} is an apocalyptic number.

21514044011167 is a deficient number, since it is larger than the sum of its proper divisors (1).

21514044011167 is an equidigital number, since it uses as much as digits as its factorization.

21514044011167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

Adding to 21514044011167 its reverse (76111044041512), we get a palindrome (97625088052679).

The spelling of 21514044011167 in words is "twenty-one trillion, five hundred fourteen billion, forty-four million, eleven thousand, one hundred sixty-seven".