231441645166 has 4 divisors (see below), whose sum is σ = 347162467752. Its totient is φ = 115720822582.

The previous prime is 231441645143. The next prime is 231441645179. The reversal of 231441645166 is 661546144132.

231441645166 is digitally balanced in base 3, 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 is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57860411290 + ... + 57860411293.

It is an arithmetic number, because the mean of its divisors is an integer number (86790616938).

Almost surely, 2^231441645166 is an apocalyptic number.

231441645166 is a deficient number, since it is larger than the sum of its proper divisors (115720822586).

231441645166 is a wasteful number, since it uses less digits than its factorization.

231441645166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115720822585.

The product of its digits is 414720, while the sum is 43.

Adding to 231441645166 its reverse (661546144132), we get a palindrome (892987789298).

The spelling of 231441645166 in words is "two hundred thirty-one billion, four hundred forty-one million, six hundred forty-five thousand, one hundred sixty-six".