2004640066 has 16 divisors (see below), whose sum is σ = 3532652928. Its totient is φ = 841107600.

The previous prime is 2004640063. The next prime is 2004640073. The reversal of 2004640066 is 6600464002.

It is not an unprimeable number, because it can be changed into a prime (2004640063) 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, 3504330 + ... + 3504901.

It is an arithmetic number, because the mean of its divisors is an integer number (220790808).

Almost surely, 2^2004640066 is an apocalyptic number.

2004640066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2004640066 is a deficient number, since it is larger than the sum of its proper divisors (1528012862).

2004640066 is a wasteful number, since it uses less digits than its factorization.

2004640066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009257.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2004640066 is about 44773.2070104432. The cubic root of 2004640066 is about 1260.8946501587.

The spelling of 2004640066 in words is "two billion, four million, six hundred forty thousand, sixty-six".