4544221266 has 48 divisors (see below), whose sum is σ = 10761476544. Its totient is φ = 1377348192.

The previous prime is 4544221249. The next prime is 4544221303. The reversal of 4544221266 is 6621224454.

It is a self number, because there is not a number n which added to its sum of digits gives 4544221266.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129246 + ... + 160601.

It is an arithmetic number, because the mean of its divisors is an integer number (224197428).

Almost surely, 2^4544221266 is an apocalyptic number.

4544221266 is an abundant number, since it is smaller than the sum of its proper divisors (6217255278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4544221266 is a wasteful number, since it uses less digits than its factorization.

4544221266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289935 (or 289932 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 4544221266 is about 67410.8393806219. The cubic root of 4544221266 is about 1656.3539837864.

The spelling of 4544221266 in words is "four billion, five hundred forty-four million, two hundred twenty-one thousand, two hundred sixty-six".