1659841260 has 192 divisors, whose sum is σ = 5814595584. Its totient is φ = 343699200.

The previous prime is 1659841259. The next prime is 1659841279. The reversal of 1659841260 is 621489561.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2046255 + ... + 2047065.

It is an arithmetic number, because the mean of its divisors is an integer number (30284352).

Almost surely, 2^1659841260 is an apocalyptic number.

1659841260 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 1659841260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2907297792).

1659841260 is an abundant number, since it is smaller than the sum of its proper divisors (4154754324).

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

1659841260 is a wasteful number, since it uses less digits than its factorization.

1659841260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1659841260 is about 40741.1494683201. The cubic root of 1659841260 is about 1184.0104042107.

The spelling of 1659841260 in words is "one billion, six hundred fifty-nine million, eight hundred forty-one thousand, two hundred sixty".