56166404543 has 8 divisors (see below), whose sum is σ = 56245492800. Its totient is φ = 56087367040.

The previous prime is 56166404513. The next prime is 56166404557. The reversal of 56166404543 is 34540466165.

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 56166404543 - 2¹² = 56166400447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56166404494 and 56166404503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56166404513) 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, 2555963 + ... + 2577843.

It is an arithmetic number, because the mean of its divisors is an integer number (7030686600).

Almost surely, 2^56166404543 is an apocalyptic number.

56166404543 is a deficient number, since it is larger than the sum of its proper divisors (79088257).

56166404543 is a wasteful number, since it uses less digits than its factorization.

56166404543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25377.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 56166404543 in words is "fifty-six billion, one hundred sixty-six million, four hundred four thousand, five hundred forty-three".