44166266321 has 4 divisors (see below), whose sum is σ = 44183314944. Its totient is φ = 44149217700.

The previous prime is 44166266267. The next prime is 44166266341. The reversal of 44166266321 is 12366266144.

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 a de Polignac number, because none of the positive numbers 2^k-44166266321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44166266341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8520425 + ... + 8525606.

It is an arithmetic number, because the mean of its divisors is an integer number (11045828736).

Almost surely, 2^44166266321 is an apocalyptic number.

It is an amenable number.

44166266321 is a deficient number, since it is larger than the sum of its proper divisors (17048623).

44166266321 is a wasteful number, since it uses less digits than its factorization.

44166266321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17048622.

The product of its digits is 248832, while the sum is 41.

The spelling of 44166266321 in words is "forty-four billion, one hundred sixty-six million, two hundred sixty-six thousand, three hundred twenty-one".