561536110480 has 80 divisors (see below), whose sum is σ = 1348373412864. Its totient is φ = 217258053120.

The previous prime is 561536110469. The next prime is 561536110501. The reversal of 561536110480 is 84011635165.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 4895869 + ... + 5009251.

Almost surely, 2^561536110480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561536110480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674186706432).

561536110480 is an abundant number, since it is smaller than the sum of its proper divisors (786837302384).

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

561536110480 is a wasteful number, since it uses less digits than its factorization.

561536110480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115424 (or 115418 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 561536110480 in words is "five hundred sixty-one billion, five hundred thirty-six million, one hundred ten thousand, four hundred eighty".