440321611556111 has 4 divisors (see below), whose sum is σ = 440321669914224. Its totient is φ = 440321553198000.

The previous prime is 440321611556059. The next prime is 440321611556179. The reversal of 440321611556111 is 111655116123044.

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

It is a cyclic number.

It is not a de Polignac number, because 440321611556111 - 2²² = 440321607361807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440321611556191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15823715 + ... + 33630836.

It is an arithmetic number, because the mean of its divisors is an integer number (110080417478556).

Almost surely, 2^{440321611556111} is an apocalyptic number.

440321611556111 is a deficient number, since it is larger than the sum of its proper divisors (58358113).

440321611556111 is an equidigital number, since it uses as much as digits as its factorization.

440321611556111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58358112.

The product of its (nonzero) digits is 86400, while the sum is 41.

Adding to 440321611556111 its reverse (111655116123044), we get a palindrome (551976727679155).

The spelling of 440321611556111 in words is "four hundred forty trillion, three hundred twenty-one billion, six hundred eleven million, five hundred fifty-six thousand, one hundred eleven".