30660066 has 16 divisors (see below), whose sum is σ = 68133600. Its totient is φ = 10220004.

The previous prime is 30660043. The next prime is 30660067. The reversal of 30660066 is 66006603.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30660067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283836 + ... + 283943.

It is an arithmetic number, because the mean of its divisors is an integer number (4258350).

Almost surely, 2^30660066 is an apocalyptic number.

30660066 is an abundant number, since it is smaller than the sum of its proper divisors (37473534).

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

30660066 is a wasteful number, since it uses less digits than its factorization.

30660066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567790 (or 567784 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 30660066 is about 5537.1532397072. The cubic root of 30660066 is about 312.9856036276.

Adding to 30660066 its reverse (66006603), we get a palindrome (96666669).

The spelling of 30660066 in words is "thirty million, six hundred sixty thousand, sixty-six".