6666006600 has 144 divisors (see below), whose sum is σ = 24421896720. Its totient is φ = 1615996800.

The previous prime is 6666006593. The next prime is 6666006619. The reversal of 6666006600 is 66006666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 148534 + ... + 188133.

It is an arithmetic number, because the mean of its divisors is an integer number (169596505).

Almost surely, 2^6666006600 is an apocalyptic number.

6666006600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6666006600 is an abundant number, since it is smaller than the sum of its proper divisors (17755890120).

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

6666006600 is a wasteful number, since it uses less digits than its factorization.

6666006600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336700 (or 336688 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 6666006600 is about 81645.6159263925. The cubic root of 6666006600 is about 1882.0099410605.

The spelling of 6666006600 in words is "six billion, six hundred sixty-six million, six thousand, six hundred".