131665552272 has 40 divisors (see below), whose sum is σ = 377928901280. Its totient is φ = 43888517280.

The previous prime is 131665552201. The next prime is 131665552301. The reversal of 131665552272 is 272255566131.

It is a happy number.

131665552272 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 6 + 55 + 522 + 72 = 666.

131665552272 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152390254 + ... + 152391117.

It is an arithmetic number, because the mean of its divisors is an integer number (9448222532).

Almost surely, 2^131665552272 is an apocalyptic number.

131665552272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131665552272 is an abundant number, since it is smaller than the sum of its proper divisors (246263349008).

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

131665552272 is a wasteful number, since it uses less digits than its factorization.

131665552272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304781388 (or 304781376 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 131665552272 in words is "one hundred thirty-one billion, six hundred sixty-five million, five hundred fifty-two thousand, two hundred seventy-two".