431661351141146 has 16 divisors (see below), whose sum is σ = 741343704662976. Its totient is φ = 184659517669536.

The previous prime is 431661351141143. The next prime is 431661351141179. The reversal of 431661351141146 is 641141153166134.

It is a self number, because there is not a number n which added to its sum of digits gives 431661351141146.

It is not an unprimeable number, because it can be changed into a prime (431661351141143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28183679411 + ... + 28183694726.

It is an arithmetic number, because the mean of its divisors is an integer number (46333981541436).

Almost surely, 2^{431661351141146} is an apocalyptic number.

431661351141146 is a deficient number, since it is larger than the sum of its proper divisors (309682353521830).

431661351141146 is a wasteful number, since it uses less digits than its factorization.

431661351141146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56367374693.

The product of its digits is 622080, while the sum is 47.

The spelling of 431661351141146 in words is "four hundred thirty-one trillion, six hundred sixty-one billion, three hundred fifty-one million, one hundred forty-one thousand, one hundred forty-six".