231442066465 has 16 divisors (see below), whose sum is σ = 281677447296. Its totient is φ = 182522995200.

The previous prime is 231442066447. The next prime is 231442066481. The reversal of 231442066465 is 564660244132.

It is not a de Polignac number, because 231442066465 - 2¹¹ = 231442064417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3148369 + ... + 3221041.

It is an arithmetic number, because the mean of its divisors is an integer number (17604840456).

Almost surely, 2^231442066465 is an apocalyptic number.

It is an amenable number.

231442066465 is a deficient number, since it is larger than the sum of its proper divisors (50235380831).

231442066465 is an equidigital number, since it uses as much as digits as its factorization.

231442066465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81720.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 231442066465 in words is "two hundred thirty-one billion, four hundred forty-two million, sixty-six thousand, four hundred sixty-five".