162975528161 has 2 divisors, whose sum is σ = 162975528162. Its totient is φ = 162975528160.

The previous prime is 162975528137. The next prime is 162975528211. The reversal of 162975528161 is 161825579261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152056323136 + 10919205025 = 389944^2 + 104495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162975528161 is a prime.

It is a super-2 number, since 2×162975528161² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162975528361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81487764080 + 81487764081.

It is an arithmetic number, because the mean of its divisors is an integer number (81487764081).

Almost surely, 2^162975528161 is an apocalyptic number.

It is an amenable number.

162975528161 is a deficient number, since it is larger than the sum of its proper divisors (1).

162975528161 is an equidigital number, since it uses as much as digits as its factorization.

162975528161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The spelling of 162975528161 in words is "one hundred sixty-two billion, nine hundred seventy-five million, five hundred twenty-eight thousand, one hundred sixty-one".