12161405132 has 6 divisors (see below), whose sum is σ = 21282458988. Its totient is φ = 6080702564.

The previous prime is 12161405131. The next prime is 12161405153. The reversal of 12161405132 is 23150416121.

It is not an unprimeable number, because it can be changed into a prime (12161405131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520175638 + ... + 1520175645.

It is an arithmetic number, because the mean of its divisors is an integer number (3547076498).

Almost surely, 2^12161405132 is an apocalyptic number.

It is an amenable number.

12161405132 is a deficient number, since it is larger than the sum of its proper divisors (9121053856).

12161405132 is a wasteful number, since it uses less digits than its factorization.

12161405132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040351287 (or 3040351285 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 12161405132 in words is "twelve billion, one hundred sixty-one million, four hundred five thousand, one hundred thirty-two".