21023339759167 has 2 divisors, whose sum is σ = 21023339759168. Its totient is φ = 21023339759166.

The previous prime is 21023339759159. The next prime is 21023339759209. The reversal of 21023339759167 is 76195793332012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21023339759167 - 2³ = 21023339759159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21023339759137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511669879583 + 10511669879584.

It is an arithmetic number, because the mean of its divisors is an integer number (10511669879584).

Almost surely, 2^{21023339759167} is an apocalyptic number.

21023339759167 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023339759167 is an equidigital number, since it uses as much as digits as its factorization.

21023339759167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12859560, while the sum is 58.

The spelling of 21023339759167 in words is "twenty-one trillion, twenty-three billion, three hundred thirty-nine million, seven hundred fifty-nine thousand, one hundred sixty-seven".