131466185457 has 4 divisors (see below), whose sum is σ = 175288247280. Its totient is φ = 87644123636.

The previous prime is 131466185447. The next prime is 131466185503. The reversal of 131466185457 is 754581664131.

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 131466185457 - 2²⁷ = 131331967729 is a prime.

It is a super-2 number, since 2×131466185457² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131466185447) 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, 21911030907 + ... + 21911030912.

It is an arithmetic number, because the mean of its divisors is an integer number (43822061820).

Almost surely, 2^131466185457 is an apocalyptic number.

It is an amenable number.

131466185457 is a deficient number, since it is larger than the sum of its proper divisors (43822061823).

131466185457 is an equidigital number, since it uses as much as digits as its factorization.

131466185457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43822061822.

The product of its digits is 2419200, while the sum is 51.

The spelling of 131466185457 in words is "one hundred thirty-one billion, four hundred sixty-six million, one hundred eighty-five thousand, four hundred fifty-seven".