6650006001 has 4 divisors (see below), whose sum is σ = 8866674672. Its totient is φ = 4433337332.

The previous prime is 6650005997. The next prime is 6650006003. The reversal of 6650006001 is 1006000566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6650006001 - 2² = 6650005997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6650006003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108334331 + ... + 1108334336.

It is an arithmetic number, because the mean of its divisors is an integer number (2216668668).

Almost surely, 2^6650006001 is an apocalyptic number.

It is an amenable number.

6650006001 is a deficient number, since it is larger than the sum of its proper divisors (2216668671).

6650006001 is a wasteful number, since it uses less digits than its factorization.

6650006001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216668670.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 6650006001 is about 81547.5689459839. The cubic root of 6650006001 is about 1880.5029212265.

Adding to 6650006001 its reverse (1006000566), we get a palindrome (7656006567).

The spelling of 6650006001 in words is "six billion, six hundred fifty million, six thousand, one".