56608166647 has 8 divisors (see below), whose sum is σ = 57033385136. Its totient is φ = 56183766912.

The previous prime is 56608166627. The next prime is 56608166759. The reversal of 56608166647 is 74666180665.

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 56608166647 - 2¹⁹ = 56607642359 is a prime.

It is a super-2 number, since 2×56608166647² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56608166617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65538 + ... + 342799.

It is an arithmetic number, because the mean of its divisors is an integer number (7129173142).

Almost surely, 2^56608166647 is an apocalyptic number.

56608166647 is a deficient number, since it is larger than the sum of its proper divisors (425218489).

56608166647 is a wasteful number, since it uses less digits than its factorization.

56608166647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409377.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 56608166647 in words is "fifty-six billion, six hundred eight million, one hundred sixty-six thousand, six hundred forty-seven".