15561106060 has 48 divisors (see below), whose sum is σ = 34662460896. Its totient is φ = 5847821312.

The previous prime is 15561106051. The next prime is 15561106091. The reversal of 15561106060 is 6060116551.

15561106060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150774 + ... + 232066.

It is an arithmetic number, because the mean of its divisors is an integer number (722134602).

Almost surely, 2^15561106060 is an apocalyptic number.

15561106060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15561106060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17331230448).

15561106060 is an abundant number, since it is smaller than the sum of its proper divisors (19101354836).

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

15561106060 is a wasteful number, since it uses less digits than its factorization.

15561106060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81882 (or 81880 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 15561106060 in words is "fifteen billion, five hundred sixty-one million, one hundred six thousand, sixty".