5551706211606 has 64 divisors (see below), whose sum is σ = 12513459614400. Its totient is φ = 1824148263168.

The previous prime is 5551706211593. The next prime is 5551706211683. The reversal of 5551706211606 is 6061126071555.

It is a happy number.

5551706211606 is a `hidden beast` number, since 5 + 5 + 5 + 1 + 7 + 0 + 621 + 16 + 0 + 6 = 666.

It is a super-3 number, since 3×5551706211606³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6324840 + ... + 7148916.

It is an arithmetic number, because the mean of its divisors is an integer number (195522806475).

Almost surely, 2^{5551706211606} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551706211606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6256729807200).

5551706211606 is an abundant number, since it is smaller than the sum of its proper divisors (6961753402794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5551706211606 is a wasteful number, since it uses less digits than its factorization.

5551706211606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825870 (or 825864 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 5551706211606 in words is "five trillion, five hundred fifty-one billion, seven hundred six million, two hundred eleven thousand, six hundred six".