4231158161585 has 4 divisors (see below), whose sum is σ = 5077389793908. Its totient is φ = 3384926529264.

The previous prime is 4231158161479. The next prime is 4231158161603. The reversal of 4231158161585 is 5851618511324.

4231158161585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1791186075904 + 2439972085681 = 1338352^2 + 1562041^2 .

It is a cyclic number.

It is not a de Polignac number, because 4231158161585 - 2²² = 4231153967281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423115816154 + ... + 423115816163.

It is an arithmetic number, because the mean of its divisors is an integer number (1269347448477).

Almost surely, 2^{4231158161585} is an apocalyptic number.

It is an amenable number.

4231158161585 is a deficient number, since it is larger than the sum of its proper divisors (846231632323).

4231158161585 is an equidigital number, since it uses as much as digits as its factorization.

4231158161585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846231632322.

The product of its digits is 1152000, while the sum is 50.

The spelling of 4231158161585 in words is "four trillion, two hundred thirty-one billion, one hundred fifty-eight million, one hundred sixty-one thousand, five hundred eighty-five".