13132175661 has 12 divisors (see below), whose sum is σ = 20693125440. Its totient is φ = 7958894280.

The previous prime is 13132175621. The next prime is 13132175663. The reversal of 13132175661 is 16657123131.

It is not a de Polignac number, because 13132175661 - 2¹⁴ = 13132159277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132175663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66324021 + ... + 66324218.

It is an arithmetic number, because the mean of its divisors is an integer number (1724427120).

Almost surely, 2^13132175661 is an apocalyptic number.

13132175661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13132175661 is a deficient number, since it is larger than the sum of its proper divisors (7560949779).

13132175661 is a wasteful number, since it uses less digits than its factorization.

13132175661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132648256 (or 132648253 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

Adding to 13132175661 its reverse (16657123131), we get a palindrome (29789298792).

The spelling of 13132175661 in words is "thirteen billion, one hundred thirty-two million, one hundred seventy-five thousand, six hundred sixty-one".