431660066133 has 4 divisors (see below), whose sum is σ = 575546754848. Its totient is φ = 287773377420.

The previous prime is 431660066107. The next prime is 431660066191. The reversal of 431660066133 is 331660066134.

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 not a de Polignac number, because 431660066133 - 2⁶ = 431660066069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431660066091 and 431660066100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431660067133) 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, 71943344353 + ... + 71943344358.

It is an arithmetic number, because the mean of its divisors is an integer number (143886688712).

Almost surely, 2^431660066133 is an apocalyptic number.

It is an amenable number.

431660066133 is a deficient number, since it is larger than the sum of its proper divisors (143886688715).

431660066133 is a wasteful number, since it uses less digits than its factorization.

431660066133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143886688714.

The product of its (nonzero) digits is 139968, while the sum is 39.

Subtracting from 431660066133 its reverse (331660066134), we obtain a palindrome (99999999999).

The spelling of 431660066133 in words is "four hundred thirty-one billion, six hundred sixty million, sixty-six thousand, one hundred thirty-three".