544436666 has 8 divisors (see below), whose sum is σ = 816876660. Its totient is φ = 272144448.

The previous prime is 544436639. The next prime is 544436687. The reversal of 544436666 is 666634445.

It is a happy number.

544436666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 495730225 + 48706441 = 22265^2 + 6979^2 .

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

It is a super-2 number, since 2×544436666² = 592822566570391112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27221 + ... + 42776.

Almost surely, 2^544436666 is an apocalyptic number.

544436666 is a deficient number, since it is larger than the sum of its proper divisors (272439994).

544436666 is a wasteful number, since it uses less digits than its factorization.

544436666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73888.

The product of its digits is 1244160, while the sum is 44.

The square root of 544436666 is about 23333.1666517856. The cubic root of 544436666 is about 816.5493835370.

The spelling of 544436666 in words is "five hundred forty-four million, four hundred thirty-six thousand, six hundred sixty-six".