21160510506419 has 2 divisors, whose sum is σ = 21160510506420. Its totient is φ = 21160510506418.

The previous prime is 21160510506409. The next prime is 21160510506469. The reversal of 21160510506419 is 91460501506112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21160510506419 - 2⁴ = 21160510506403 is a prime.

It is a super-2 number, since 2×21160510506419² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21160510506409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580255253209 + 10580255253210.

It is an arithmetic number, because the mean of its divisors is an integer number (10580255253210).

Almost surely, 2^{21160510506419} is an apocalyptic number.

21160510506419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160510506419 is an equidigital number, since it uses as much as digits as its factorization.

21160510506419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 21160510506419 in words is "twenty-one trillion, one hundred sixty billion, five hundred ten million, five hundred six thousand, four hundred nineteen".