15561150080 has 128 divisors (see below), whose sum is σ = 42822864000. Its totient is φ = 5296656384.

The previous prime is 15561150071. The next prime is 15561150091. The reversal of 15561150080 is 8005116551.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610226 + ... + 635214.

It is an arithmetic number, because the mean of its divisors is an integer number (334553625).

Almost surely, 2^15561150080 is an apocalyptic number.

15561150080 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 15561150080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21411432000).

15561150080 is an abundant number, since it is smaller than the sum of its proper divisors (27261713920).

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

15561150080 is a wasteful number, since it uses less digits than its factorization.

15561150080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25154 (or 25142 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 32.

The spelling of 15561150080 in words is "fifteen billion, five hundred sixty-one million, one hundred fifty thousand, eighty".