55555560606 has 128 divisors (see below), whose sum is σ = 147841182720. Its totient is φ = 13505605632.

The previous prime is 55555560581. The next prime is 55555560607. The reversal of 55555560606 is 60606555555.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555560607) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 311470 + ... + 456206.

It is an arithmetic number, because the mean of its divisors is an integer number (1155009240).

Almost surely, 2^55555560606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55555560606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73920591360).

55555560606 is an abundant number, since it is smaller than the sum of its proper divisors (92285622114).

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

55555560606 is a wasteful number, since it uses less digits than its factorization.

55555560606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144818.

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 55555560606 in words is "fifty-five billion, five hundred fifty-five million, five hundred sixty thousand, six hundred six".