162533686121 has 2 divisors, whose sum is σ = 162533686122. Its totient is φ = 162533686120.

The previous prime is 162533686109. The next prime is 162533686141. The reversal of 162533686121 is 121686335261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153613828096 + 8919858025 = 391936^2 + 94445^2 .

It is a cyclic number.

It is not a de Polignac number, because 162533686121 - 2¹⁸ = 162533423977 is a prime.

It is not a weakly prime, because it can be changed into another prime (162533686141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81266843060 + 81266843061.

It is an arithmetic number, because the mean of its divisors is an integer number (81266843061).

Almost surely, 2^162533686121 is an apocalyptic number.

It is an amenable number.

162533686121 is a deficient number, since it is larger than the sum of its proper divisors (1).

162533686121 is an equidigital number, since it uses as much as digits as its factorization.

162533686121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The spelling of 162533686121 in words is "one hundred sixty-two billion, five hundred thirty-three million, six hundred eighty-six thousand, one hundred twenty-one".