6650661004 has 24 divisors (see below), whose sum is σ = 12839647968. Its totient is φ = 2994668160.

The previous prime is 6650660927. The next prime is 6650661007. The reversal of 6650661004 is 4001660566.

It is not an unprimeable number, because it can be changed into a prime (6650661007) 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, 1557592 + ... + 1561855.

It is an arithmetic number, because the mean of its divisors is an integer number (534985332).

Almost surely, 2^6650661004 is an apocalyptic number.

It is an amenable number.

6650661004 is a deficient number, since it is larger than the sum of its proper divisors (6188986964).

6650661004 is a wasteful number, since it uses less digits than its factorization.

6650661004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119505 (or 3119503 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6650661004 is about 81551.5849263520. The cubic root of 6650661004 is about 1880.5646602493.

The spelling of 6650661004 in words is "six billion, six hundred fifty million, six hundred sixty-one thousand, four".