1659868848 has 280 divisors, whose sum is σ = 5576870736. Its totient is φ = 472780800.

The previous prime is 1659868811. The next prime is 1659868849. The reversal of 1659868848 is 8488689561.

It is not an unprimeable number, because it can be changed into a prime (1659868849) by changing a digit.

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 55 ways as a sum of consecutive naturals, for example, 2180788 + ... + 2181548.

Almost surely, 2^1659868848 is an apocalyptic number.

1659868848 is a gapful number since it is divisible by the number (18) 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 1659868848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788435368).

1659868848 is an abundant number, since it is smaller than the sum of its proper divisors (3917001888).

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

1659868848 is a wasteful number, since it uses less digits than its factorization.

1659868848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 794 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 63.

The square root of 1659868848 is about 40741.4880435165. The cubic root of 1659868848 is about 1184.0169639340.

The spelling of 1659868848 in words is "one billion, six hundred fifty-nine million, eight hundred sixty-eight thousand, eight hundred forty-eight".