16560404124 has 72 divisors (see below), whose sum is σ = 42870449664. Its totient is φ = 4971357600.

The previous prime is 16560404101. The next prime is 16560404131. The reversal of 16560404124 is 42140406561.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102069 + ... + 208659.

It is an arithmetic number, because the mean of its divisors is an integer number (595422912).

Almost surely, 2^16560404124 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 16560404124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21435224832).

16560404124 is an abundant number, since it is smaller than the sum of its proper divisors (26310045540).

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

16560404124 is a wasteful number, since it uses less digits than its factorization.

16560404124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106727 (or 106714 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 16560404124 in words is "sixteen billion, five hundred sixty million, four hundred four thousand, one hundred twenty-four".