1656025560 has 672 divisors, whose sum is σ = 6952791600. Its totient is φ = 352719360.

The previous prime is 1656025523. The next prime is 1656025577. The reversal of 1656025560 is 655206561.

It is a happy number.

1656025560 is a `hidden beast` number, since 16 + 5 + 60 + 25 + 560 = 666.

1656025560 is digitally balanced in base 4, 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 an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 27147930 + ... + 27147990.

Almost surely, 2^1656025560 is an apocalyptic number.

1656025560 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 1656025560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3476395800).

1656025560 is an abundant number, since it is smaller than the sum of its proper divisors (5296766040).

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

1656025560 is a wasteful number, since it uses less digits than its factorization.

1656025560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1656025560 is about 40694.2939489064. The cubic root of 1656025560 is about 1183.1024268538.

The spelling of 1656025560 in words is "one billion, six hundred fifty-six million, twenty-five thousand, five hundred sixty".