15601101560 has 128 divisors (see below), whose sum is σ = 39036764160. Its totient is φ = 5563929600.

The previous prime is 15601101517. The next prime is 15601101611. The reversal of 15601101560 is 6510110651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6133649 + ... + 6136191.

It is an arithmetic number, because the mean of its divisors is an integer number (304974720).

Almost surely, 2^15601101560 is an apocalyptic number.

15601101560 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 15601101560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19518382080).

15601101560 is an abundant number, since it is smaller than the sum of its proper divisors (23435662600).

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

15601101560 is a wasteful number, since it uses less digits than its factorization.

15601101560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

Subtracting from 15601101560 its reverse (6510110651), we obtain a palindrome (9090990909).

The spelling of 15601101560 in words is "fifteen billion, six hundred one million, one hundred one thousand, five hundred sixty".