131444273655 has 48 divisors (see below), whose sum is σ = 236070300960. Its totient is φ = 67615052544.

The previous prime is 131444273641. The next prime is 131444273663. The reversal of 131444273655 is 556372444131.

131444273655 is a `hidden beast` number, since 1 + 3 + 144 + 427 + 36 + 55 = 666.

It is not a de Polignac number, because 131444273655 - 2¹⁴ = 131444257271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 131444273655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 326344 + ... + 607773.

It is an arithmetic number, because the mean of its divisors is an integer number (4918131270).

Almost surely, 2^131444273655 is an apocalyptic number.

131444273655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131444273655 is a deficient number, since it is larger than the sum of its proper divisors (104626027305).

131444273655 is a wasteful number, since it uses less digits than its factorization.

131444273655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934240 (or 934237 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 131444273655 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred seventy-three thousand, six hundred fifty-five".