440066601116423 has 16 divisors (see below), whose sum is σ = 449118504437760. Its totient is φ = 431042461682976.

The previous prime is 440066601116411. The next prime is 440066601116449. The reversal of 440066601116423 is 324611106660044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 440066601116423 - 2²⁰ = 440066600067847 is a prime.

It is a super-2 number, since 2×440066601116423² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440066601116123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1735788236 + ... + 1736041742.

It is an arithmetic number, because the mean of its divisors is an integer number (28069906527360).

Almost surely, 2^{440066601116423} is an apocalyptic number.

440066601116423 is a deficient number, since it is larger than the sum of its proper divisors (9051903321337).

440066601116423 is a wasteful number, since it uses less digits than its factorization.

440066601116423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308126.

The product of its (nonzero) digits is 497664, while the sum is 44.

Adding to 440066601116423 its reverse (324611106660044), we get a palindrome (764677707776467).

The spelling of 440066601116423 in words is "four hundred forty trillion, sixty-six billion, six hundred one million, one hundred sixteen thousand, four hundred twenty-three".