162574891436161 has 2 divisors, whose sum is σ = 162574891436162. Its totient is φ = 162574891436160.

The previous prime is 162574891436117. The next prime is 162574891436173. The reversal of 162574891436161 is 161634198475261.

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., 155365156277136 + 7209735159025 = 12464556^2 + 2685095^2 .

It is an emirp because it is prime and its reverse (161634198475261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162574891436161 - 2⁴⁷ = 21837403080833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 162574891436093 and 162574891436102.

It is not a weakly prime, because it can be changed into another prime (162574891496161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81287445718080 + 81287445718081.

It is an arithmetic number, because the mean of its divisors is an integer number (81287445718081).

Almost surely, 2^{162574891436161} is an apocalyptic number.

It is an amenable number.

162574891436161 is a deficient number, since it is larger than the sum of its proper divisors (1).

162574891436161 is an equidigital number, since it uses as much as digits as its factorization.

162574891436161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 64.

The spelling of 162574891436161 in words is "one hundred sixty-two trillion, five hundred seventy-four billion, eight hundred ninety-one million, four hundred thirty-six thousand, one hundred sixty-one".