1566004361 has 8 divisors (see below), whose sum is σ = 1583145984. Its totient is φ = 1548938160.

The previous prime is 1566004313. The next prime is 1566004367. The reversal of 1566004361 is 1634006651.

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

It is a cyclic number.

It is not a de Polignac number, because 1566004361 - 2¹⁰ = 1566003337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1566004367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23411 + ... + 60663.

It is an arithmetic number, because the mean of its divisors is an integer number (197893248).

Almost surely, 2^1566004361 is an apocalyptic number.

It is an amenable number.

1566004361 is a deficient number, since it is larger than the sum of its proper divisors (17141623).

1566004361 is a wasteful number, since it uses less digits than its factorization.

1566004361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37711.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1566004361 is about 39572.7729758732. The cubic root of 1566004361 is about 1161.2640701499.

The spelling of 1566004361 in words is "one billion, five hundred sixty-six million, four thousand, three hundred sixty-one".