162111573149 has 2 divisors, whose sum is σ = 162111573150. Its totient is φ = 162111573148.

The previous prime is 162111573097. The next prime is 162111573167. The reversal of 162111573149 is 941375111261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97337760100 + 64773813049 = 311990^2 + 254507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162111573149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162111573649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81055786574 + 81055786575.

It is an arithmetic number, because the mean of its divisors is an integer number (81055786575).

Almost surely, 2^162111573149 is an apocalyptic number.

It is an amenable number.

162111573149 is a deficient number, since it is larger than the sum of its proper divisors (1).

162111573149 is an equidigital number, since it uses as much as digits as its factorization.

162111573149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The spelling of 162111573149 in words is "one hundred sixty-two billion, one hundred eleven million, five hundred seventy-three thousand, one hundred forty-nine".