21160132422697 has 2 divisors, whose sum is σ = 21160132422698. Its totient is φ = 21160132422696.

The previous prime is 21160132422659. The next prime is 21160132422701. The reversal of 21160132422697 is 79622423106112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15222045583936 + 5938086838761 = 3901544^2 + 2436819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21160132422697 is a prime.

It is not a weakly prime, because it can be changed into another prime (21160132422397) 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, 10580066211348 + 10580066211349.

It is an arithmetic number, because the mean of its divisors is an integer number (10580066211349).

Almost surely, 2^{21160132422697} is an apocalyptic number.

It is an amenable number.

21160132422697 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160132422697 is an equidigital number, since it uses as much as digits as its factorization.

21160132422697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 21160132422697 in words is "twenty-one trillion, one hundred sixty billion, one hundred thirty-two million, four hundred twenty-two thousand, six hundred ninety-seven".