144661722443 has 4 divisors (see below), whose sum is σ = 165327682800. Its totient is φ = 123995762088.

The previous prime is 144661722437. The next prime is 144661722449. The reversal of 144661722443 is 344227166441.

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

It is an interprime number because it is at equal distance from previous prime (144661722437) and next prime (144661722449).

It is a cyclic number.

It is not a de Polignac number, because 144661722443 - 2²⁰ = 144660673867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144661722394 and 144661722403.

It is not an unprimeable number, because it can be changed into a prime (144661722449) 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, 10332980168 + ... + 10332980181.

It is an arithmetic number, because the mean of its divisors is an integer number (41331920700).

Almost surely, 2^144661722443 is an apocalyptic number.

144661722443 is a deficient number, since it is larger than the sum of its proper divisors (20665960357).

144661722443 is an equidigital number, since it uses as much as digits as its factorization.

144661722443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20665960356.

The product of its digits is 774144, while the sum is 44.

Adding to 144661722443 its reverse (344227166441), we get a palindrome (488888888884).

The spelling of 144661722443 in words is "one hundred forty-four billion, six hundred sixty-one million, seven hundred twenty-two thousand, four hundred forty-three".