15500505606 has 16 divisors (see below), whose sum is σ = 31526452800. Its totient is φ = 5079261608.

The previous prime is 15500505593. The next prime is 15500505617. The reversal of 15500505606 is 60650500551.

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 7 ways as a sum of consecutive naturals, for example, 21893016 + ... + 21893723.

It is an arithmetic number, because the mean of its divisors is an integer number (1970403300).

Almost surely, 2^15500505606 is an apocalyptic number.

15500505606 is an abundant number, since it is smaller than the sum of its proper divisors (16025947194).

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

15500505606 is a wasteful number, since it uses less digits than its factorization.

15500505606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43786803.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 15500505606 in words is "fifteen billion, five hundred million, five hundred five thousand, six hundred six".