890161616027 has 2 divisors, whose sum is σ = 890161616028. Its totient is φ = 890161616026.

The previous prime is 890161615999. The next prime is 890161616059. The reversal of 890161616027 is 720616161098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 890161616027 - 2¹⁰ = 890161615003 is a prime.

It is not a weakly prime, because it can be changed into another prime (890161615027) 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, 445080808013 + 445080808014.

It is an arithmetic number, because the mean of its divisors is an integer number (445080808014).

Almost surely, 2^890161616027 is an apocalyptic number.

890161616027 is a deficient number, since it is larger than the sum of its proper divisors (1).

890161616027 is an equidigital number, since it uses as much as digits as its factorization.

890161616027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 890161616027 in words is "eight hundred ninety billion, one hundred sixty-one million, six hundred sixteen thousand, twenty-seven".