1005066660 has 72 divisors (see below), whose sum is σ = 3047345280. Its totient is φ = 247398528.

The previous prime is 1005066653. The next prime is 1005066679. The reversal of 1005066660 is 666605001.

1005066660 is digitally balanced in base 2, 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 (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39420 + ... + 59699.

It is an arithmetic number, because the mean of its divisors is an integer number (42324240).

Almost surely, 2^1005066660 is an apocalyptic number.

1005066660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005066660 is an abundant number, since it is smaller than the sum of its proper divisors (2042278620).

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

1005066660 is a wasteful number, since it uses less digits than its factorization.

1005066660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99157 (or 99142 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1005066660 is about 31702.7863128779. The cubic root of 1005066660 is about 1001.6860423303.

The spelling of 1005066660 in words is "one billion, five million, sixty-six thousand, six hundred sixty".