56866366289 has 8 divisors (see below), whose sum is σ = 58079628288. Its totient is φ = 55653243520.

The previous prime is 56866366267. The next prime is 56866366301. The reversal of 56866366289 is 98266366865.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56866366289 is a prime.

It is a super-2 number, since 2×56866366289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56866369289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614464 + ... + 1649310.

It is an arithmetic number, because the mean of its divisors is an integer number (7259953536).

Almost surely, 2^56866366289 is an apocalyptic number.

It is an amenable number.

56866366289 is a deficient number, since it is larger than the sum of its proper divisors (1213261999).

56866366289 is a wasteful number, since it uses less digits than its factorization.

56866366289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69615.

The product of its digits is 134369280, while the sum is 65.

The spelling of 56866366289 in words is "fifty-six billion, eight hundred sixty-six million, three hundred sixty-six thousand, two hundred eighty-nine".