15566541120 has 896 divisors, whose sum is σ = 62983872000. Its totient is φ = 3636928512.

The previous prime is 15566541083. The next prime is 15566541127. The reversal of 15566541120 is 2114566551.

15566541120 is a `hidden beast` number, since 1 + 55 + 66 + 541 + 1 + 2 + 0 = 666.

15566541120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15566541127) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 263839651 + ... + 263839709.

It is an arithmetic number, because the mean of its divisors is an integer number (70294500).

Almost surely, 2^15566541120 is an apocalyptic number.

15566541120 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 15566541120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31491936000).

15566541120 is an abundant number, since it is smaller than the sum of its proper divisors (47417330880).

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

15566541120 is an equidigital number, since it uses as much as digits as its factorization.

15566541120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 15566541120 in words is "fifteen billion, five hundred sixty-six million, five hundred forty-one thousand, one hundred twenty".