244116321661 has 4 divisors (see below), whose sum is σ = 244486756800. Its totient is φ = 243745886524.

The previous prime is 244116321653. The next prime is 244116321671. The reversal of 244116321661 is 166123611442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 244116321661 - 2³ = 244116321653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244116321661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244116321611) 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, 185216581 + ... + 185217898.

It is an arithmetic number, because the mean of its divisors is an integer number (61121689200).

Almost surely, 2^244116321661 is an apocalyptic number.

It is an amenable number.

244116321661 is a deficient number, since it is larger than the sum of its proper divisors (370435139).

244116321661 is an equidigital number, since it uses as much as digits as its factorization.

244116321661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370435138.

The product of its digits is 41472, while the sum is 37.

The spelling of 244116321661 in words is "two hundred forty-four billion, one hundred sixteen million, three hundred twenty-one thousand, six hundred sixty-one".