1660541304 has 128 divisors (see below), whose sum is σ = 4450982400. Its totient is φ = 515074560.

The previous prime is 1660541297. The next prime is 1660541339. The reversal of 1660541304 is 4031450661.

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, 6172882 + ... + 6173150.

It is an arithmetic number, because the mean of its divisors is an integer number (34773300).

Almost surely, 2^1660541304 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 1660541304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2225491200).

1660541304 is an abundant number, since it is smaller than the sum of its proper divisors (2790441096).

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

1660541304 is a wasteful number, since it uses less digits than its factorization.

1660541304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1660541304 is about 40749.7399255504. The cubic root of 1660541304 is about 1184.1768343591.

Adding to 1660541304 its reverse (4031450661), we get a palindrome (5691991965).

The spelling of 1660541304 in words is "one billion, six hundred sixty million, five hundred forty-one thousand, three hundred four".