6660200007 has 12 divisors (see below), whose sum is σ = 10186188480. Its totient is φ = 4178948928.

The previous prime is 6660199981. The next prime is 6660200009. The reversal of 6660200007 is 7000020666.

It is not a de Polignac number, because 6660200007 - 2¹⁸ = 6659937863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660200009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21765207 + ... + 21765512.

It is an arithmetic number, because the mean of its divisors is an integer number (848849040).

Almost surely, 2^6660200007 is an apocalyptic number.

6660200007 is a deficient number, since it is larger than the sum of its proper divisors (3525988473).

6660200007 is a wasteful number, since it uses less digits than its factorization.

6660200007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43530742 (or 43530739 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 6660200007 is about 81610.0484438038. The cubic root of 6660200007 is about 1881.4633249229.

The spelling of 6660200007 in words is "six billion, six hundred sixty million, two hundred thousand, seven".