160561666919 has 2 divisors, whose sum is σ = 160561666920. Its totient is φ = 160561666918.

The previous prime is 160561666883. The next prime is 160561666957. The reversal of 160561666919 is 919666165061.

160561666919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 160561666919 - 2³² = 156266699623 is a prime.

It is a super-2 number, since 2×160561666919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160561666999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80280833459 + 80280833460.

It is an arithmetic number, because the mean of its divisors is an integer number (80280833460).

Almost surely, 2^160561666919 is an apocalyptic number.

160561666919 is a deficient number, since it is larger than the sum of its proper divisors (1).

160561666919 is an equidigital number, since it uses as much as digits as its factorization.

160561666919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 160561666919 in words is "one hundred sixty billion, five hundred sixty-one million, six hundred sixty-six thousand, nine hundred nineteen".