1666302484 has 96 divisors (see below), whose sum is σ = 3757178880. Its totient is φ = 627782400.

The previous prime is 1666302383. The next prime is 1666302487. The reversal of 1666302484 is 4842036661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666302487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1603237 + ... + 1604275.

It is an arithmetic number, because the mean of its divisors is an integer number (39137280).

Almost surely, 2^1666302484 is an apocalyptic number.

1666302484 is a gapful number since it is divisible by the number (14) 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 1666302484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878589440).

1666302484 is an abundant number, since it is smaller than the sum of its proper divisors (2090876396).

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

1666302484 is a wasteful number, since it uses less digits than its factorization.

1666302484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 1666302484 is about 40820.3684941721. The cubic root of 1666302484 is about 1185.5447379467.

The spelling of 1666302484 in words is "one billion, six hundred sixty-six million, three hundred two thousand, four hundred eighty-four".