21160510562041 has 2 divisors, whose sum is σ = 21160510562042. Its totient is φ = 21160510562040.

The previous prime is 21160510562039. The next prime is 21160510562159. The reversal of 21160510562041 is 14026501506112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19687891906816 + 1472618655225 = 4437104^2 + 1213515^2 .

It is a cyclic number.

It is not a de Polignac number, because 21160510562041 - 2¹ = 21160510562039 is a prime.

Together with 21160510562039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21160510561988 and 21160510562006.

It is not a weakly prime, because it can be changed into another prime (21160510562011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580255281020 + 10580255281021.

It is an arithmetic number, because the mean of its divisors is an integer number (10580255281021).

Almost surely, 2^{21160510562041} is an apocalyptic number.

It is an amenable number.

21160510562041 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160510562041 is an equidigital number, since it uses as much as digits as its factorization.

21160510562041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 21160510562041 in words is "twenty-one trillion, one hundred sixty billion, five hundred ten million, five hundred sixty-two thousand, forty-one".