6600642001 has 8 divisors (see below), whose sum is σ = 6678663840. Its totient is φ = 6522922848.

The previous prime is 6600641989. The next prime is 6600642007. The reversal of 6600642001 is 1002460066.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6600642001 - 2¹⁵ = 6600609233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6600642007) 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, 31651 + ... + 119176.

It is an arithmetic number, because the mean of its divisors is an integer number (834832980).

Almost surely, 2^6600642001 is an apocalyptic number.

It is an amenable number.

6600642001 is a deficient number, since it is larger than the sum of its proper divisors (78021839).

6600642001 is a wasteful number, since it uses less digits than its factorization.

6600642001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151343.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6600642001 is about 81244.3351932921. The cubic root of 6600642001 is about 1875.8382741526.

The spelling of 6600642001 in words is "six billion, six hundred million, six hundred forty-two thousand, one".