21160466160577 has 2 divisors, whose sum is σ = 21160466160578. Its totient is φ = 21160466160576.

The previous prime is 21160466160517. The next prime is 21160466160583. The reversal of 21160466160577 is 77506166406112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17442784719936 + 3717681440641 = 4176456^2 + 1928129^2 .

It is a cyclic number.

It is not a de Polignac number, because 21160466160577 - 2¹¹ = 21160466158529 is a prime.

It is not a weakly prime, because it can be changed into another prime (21160466160517) 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, 10580233080288 + 10580233080289.

It is an arithmetic number, because the mean of its divisors is an integer number (10580233080289).

Almost surely, 2^{21160466160577} is an apocalyptic number.

It is an amenable number.

21160466160577 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160466160577 is an equidigital number, since it uses as much as digits as its factorization.

21160466160577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 21160466160577 in words is "twenty-one trillion, one hundred sixty billion, four hundred sixty-six million, one hundred sixty thousand, five hundred seventy-seven".