4544723666 has 8 divisors (see below), whose sum is σ = 7790954880. Its totient is φ = 1947738708.

The previous prime is 4544723647. The next prime is 4544723669. The reversal of 4544723666 is 6663274454.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4544723666.

It is not an unprimeable number, because it can be changed into a prime (4544723669) 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, 162311546 + ... + 162311573.

It is an arithmetic number, because the mean of its divisors is an integer number (973869360).

Almost surely, 2^4544723666 is an apocalyptic number.

4544723666 is a deficient number, since it is larger than the sum of its proper divisors (3246231214).

4544723666 is a wasteful number, since it uses less digits than its factorization.

4544723666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324623128.

The product of its digits is 2903040, while the sum is 47.

The square root of 4544723666 is about 67414.5656813125. The cubic root of 4544723666 is about 1656.4150225965.

The spelling of 4544723666 in words is "four billion, five hundred forty-four million, seven hundred twenty-three thousand, six hundred sixty-six".