162166235004401 has 2 divisors, whose sum is σ = 162166235004402. Its totient is φ = 162166235004400.

The previous prime is 162166235004383. The next prime is 162166235004413. The reversal of 162166235004401 is 104400532661261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93815670850801 + 68350564153600 = 9685849^2 + 8267440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162166235004401 is a prime.

It is a super-2 number, since 2×162166235004401² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162166235004461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81083117502200 + 81083117502201.

It is an arithmetic number, because the mean of its divisors is an integer number (81083117502201).

Almost surely, 2^{162166235004401} is an apocalyptic number.

It is an amenable number.

162166235004401 is a deficient number, since it is larger than the sum of its proper divisors (1).

162166235004401 is an equidigital number, since it uses as much as digits as its factorization.

162166235004401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 162166235004401 its reverse (104400532661261), we get a palindrome (266566767665662).

The spelling of 162166235004401 in words is "one hundred sixty-two trillion, one hundred sixty-six billion, two hundred thirty-five million, four thousand, four hundred one".