401112606161 has 2 divisors, whose sum is σ = 401112606162. Its totient is φ = 401112606160.

The previous prime is 401112606127. The next prime is 401112606221. The reversal of 401112606161 is 161606211104.

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., 385710555136 + 15402051025 = 621056^2 + 124105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401112606161 is a prime.

It is not a weakly prime, because it can be changed into another prime (401112606061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200556303080 + 200556303081.

It is an arithmetic number, because the mean of its divisors is an integer number (200556303081).

Almost surely, 2^401112606161 is an apocalyptic number.

It is an amenable number.

401112606161 is a deficient number, since it is larger than the sum of its proper divisors (1).

401112606161 is an equidigital number, since it uses as much as digits as its factorization.

401112606161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 401112606161 its reverse (161606211104), we get a palindrome (562718817265).

The spelling of 401112606161 in words is "four hundred one billion, one hundred twelve million, six hundred six thousand, one hundred sixty-one".