55005005505606 has 64 divisors (see below), whose sum is σ = 118601831335680. Its totient is φ = 16906123728000.

The previous prime is 55005005505551. The next prime is 55005005505679. The reversal of 55005005505606 is 60650550050055.

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, 325256040 + ... + 325425108.

It is an arithmetic number, because the mean of its divisors is an integer number (1853153614620).

Almost surely, 2^{55005005505606} is an apocalyptic number.

55005005505606 is an abundant number, since it is smaller than the sum of its proper divisors (63596825830074).

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

55005005505606 is a wasteful number, since it uses less digits than its factorization.

55005005505606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173621.

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 55005005505606 in words is "fifty-five trillion, five billion, five million, five hundred five thousand, six hundred six".