5444664661223 has 8 divisors (see below), whose sum is σ = 5447268435840. Its totient is φ = 5442061516920.

The previous prime is 5444664661211. The next prime is 5444664661237. The reversal of 5444664661223 is 3221664664445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5444664661223 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 (5444664666223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17597486 + ... + 17904212.

It is an arithmetic number, because the mean of its divisors is an integer number (680908554480).

Almost surely, 2^{5444664661223} is an apocalyptic number.

5444664661223 is a deficient number, since it is larger than the sum of its proper divisors (2603774617).

5444664661223 is a wasteful number, since it uses less digits than its factorization.

5444664661223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315157.

The product of its digits is 19906560, while the sum is 53.

The spelling of 5444664661223 in words is "five trillion, four hundred forty-four billion, six hundred sixty-four million, six hundred sixty-one thousand, two hundred twenty-three".