980211020161 has 2 divisors, whose sum is σ = 980211020162. Its totient is φ = 980211020160.

The previous prime is 980211020147. The next prime is 980211020171. The reversal of 980211020161 is 161020112089.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 662164650225 + 318046369936 = 813735^2 + 563956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980211020161 is a prime.

It is not a weakly prime, because it can be changed into another prime (980211020171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490105510080 + 490105510081.

It is an arithmetic number, because the mean of its divisors is an integer number (490105510081).

Almost surely, 2^980211020161 is an apocalyptic number.

It is an amenable number.

980211020161 is a deficient number, since it is larger than the sum of its proper divisors (1).

980211020161 is an equidigital number, since it uses as much as digits as its factorization.

980211020161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 980211020161 in words is "nine hundred eighty billion, two hundred eleven million, twenty thousand, one hundred sixty-one".