6669646610 has 16 divisors (see below), whose sum is σ = 13096760832. Its totient is φ = 2425326000.

The previous prime is 6669646583. The next prime is 6669646619. The reversal of 6669646610 is 166469666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6669646619) 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, 30316466 + ... + 30316685.

It is an arithmetic number, because the mean of its divisors is an integer number (818547552).

Almost surely, 2^6669646610 is an apocalyptic number.

6669646610 is a deficient number, since it is larger than the sum of its proper divisors (6427114222).

6669646610 is a wasteful number, since it uses less digits than its factorization.

6669646610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60633169.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 6669646610 is about 81667.9044055864. The cubic root of 6669646610 is about 1882.3524393942.

The spelling of 6669646610 in words is "six billion, six hundred sixty-nine million, six hundred forty-six thousand, six hundred ten".