12426132161 has 8 divisors (see below), whose sum is σ = 12512401704. Its totient is φ = 12340097280.

The previous prime is 12426132151. The next prime is 12426132181. The reversal of 12426132161 is 16123162421.

It can be written as a sum of positive squares in 4 ways, for example, as 2962733761 + 9463398400 = 54431^2 + 97280^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12426132161 - 2³⁰ = 11352390337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12426132151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48281 + ... + 164873.

It is an arithmetic number, because the mean of its divisors is an integer number (1564050213).

Almost surely, 2^12426132161 is an apocalyptic number.

It is an amenable number.

12426132161 is a deficient number, since it is larger than the sum of its proper divisors (86269543).

12426132161 is a wasteful number, since it uses less digits than its factorization.

12426132161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117331.

The product of its digits is 3456, while the sum is 29.

Adding to 12426132161 its reverse (16123162421), we get a palindrome (28549294582).

The spelling of 12426132161 in words is "twelve billion, four hundred twenty-six million, one hundred thirty-two thousand, one hundred sixty-one".