131755671378641 has 4 divisors (see below), whose sum is σ = 131785061450352. Its totient is φ = 131726281306932.

The previous prime is 131755671378629. The next prime is 131755671378677. The reversal of 131755671378641 is 146873176557131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131755671378641 - 2³⁸ = 131480793471697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131755671378941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14695029131 + ... + 14695038096.

It is an arithmetic number, because the mean of its divisors is an integer number (32946265362588).

Almost surely, 2^{131755671378641} is an apocalyptic number.

It is an amenable number.

131755671378641 is a deficient number, since it is larger than the sum of its proper divisors (29390071711).

131755671378641 is an equidigital number, since it uses as much as digits as its factorization.

131755671378641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29390071710.

The product of its digits is 88905600, while the sum is 65.

The spelling of 131755671378641 in words is "one hundred thirty-one trillion, seven hundred fifty-five billion, six hundred seventy-one million, three hundred seventy-eight thousand, six hundred forty-one".