1566434444 has 12 divisors (see below), whose sum is σ = 2805010824. Its totient is φ = 765002784.

The previous prime is 1566434431. The next prime is 1566434459. The reversal of 1566434444 is 4444346651.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 4553417 + ... + 4553760.

It is an arithmetic number, because the mean of its divisors is an integer number (233750902).

Almost surely, 2^1566434444 is an apocalyptic number.

It is an amenable number.

1566434444 is a deficient number, since it is larger than the sum of its proper divisors (1238576380).

1566434444 is a wasteful number, since it uses less digits than its factorization.

1566434444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9107224 (or 9107222 counting only the distinct ones).

The product of its digits is 552960, while the sum is 41.

The square root of 1566434444 is about 39578.2066799394. The cubic root of 1566434444 is about 1161.3703691771.

The spelling of 1566434444 in words is "one billion, five hundred sixty-six million, four hundred thirty-four thousand, four hundred forty-four".