556665446 has 8 divisors (see below), whose sum is σ = 855364104. Its totient is φ = 271544080.

The previous prime is 556665433. The next prime is 556665449. The reversal of 556665446 is 644566655.

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 556665446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556665449) 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, 3394220 + ... + 3394383.

It is an arithmetic number, because the mean of its divisors is an integer number (106920513).

Almost surely, 2^556665446 is an apocalyptic number.

556665446 is a deficient number, since it is larger than the sum of its proper divisors (298698658).

556665446 is a wasteful number, since it uses less digits than its factorization.

556665446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788646.

The product of its digits is 2592000, while the sum is 47.

The square root of 556665446 is about 23593.7586238395. The cubic root of 556665446 is about 822.6177723282.

The spelling of 556665446 in words is "five hundred fifty-six million, six hundred sixty-five thousand, four hundred forty-six".