13665543132 has 48 divisors (see below), whose sum is σ = 33124646912. Its totient is φ = 4380143040.

The previous prime is 13665543097. The next prime is 13665543137. The reversal of 13665543132 is 23134556631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13665543137) 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 in 15 ways as a sum of consecutive naturals, for example, 58588 + ... + 175395.

Almost surely, 2^13665543132 is an apocalyptic number.

13665543132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13665543132 is an abundant number, since it is smaller than the sum of its proper divisors (19459103780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13665543132 is a wasteful number, since it uses less digits than its factorization.

13665543132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234178 (or 234176 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The spelling of 13665543132 in words is "thirteen billion, six hundred sixty-five million, five hundred forty-three thousand, one hundred thirty-two".