55666833886 has 8 divisors (see below), whose sum is σ = 83501289504. Its totient is φ = 27833070720.

The previous prime is 55666833883. The next prime is 55666833899. The reversal of 55666833886 is 68833866655.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55666833883) 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 3 ways as a sum of consecutive naturals, for example, 144171 + ... + 363481.

It is an arithmetic number, because the mean of its divisors is an integer number (10437661188).

Almost surely, 2^55666833886 is an apocalyptic number.

55666833886 is a deficient number, since it is larger than the sum of its proper divisors (27834455618).

55666833886 is a wasteful number, since it uses less digits than its factorization.

55666833886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346226.

The product of its digits is 149299200, while the sum is 64.

The spelling of 55666833886 in words is "fifty-five billion, six hundred sixty-six million, eight hundred thirty-three thousand, eight hundred eighty-six".