6650620171 has 8 divisors (see below), whose sum is σ = 7173823104. Its totient is φ = 6129076800.

The previous prime is 6650620153. The next prime is 6650620187. The reversal of 6650620171 is 1710260566.

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 6650620171 - 2¹¹ = 6650618123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650620111) 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, 406555 + ... + 422596.

It is an arithmetic number, because the mean of its divisors is an integer number (896727888).

Almost surely, 2^6650620171 is an apocalyptic number.

6650620171 is a deficient number, since it is larger than the sum of its proper divisors (523202933).

6650620171 is a wasteful number, since it uses less digits than its factorization.

6650620171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829781.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 6650620171 is about 81551.3345752232. The cubic root of 6650620171 is about 1880.5608115465.

The spelling of 6650620171 in words is "six billion, six hundred fifty million, six hundred twenty thousand, one hundred seventy-one".