6651016171 has 2 divisors, whose sum is σ = 6651016172. Its totient is φ = 6651016170.

The previous prime is 6651016159. The next prime is 6651016297. The reversal of 6651016171 is 1716101566.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6651016171 is a prime.

It is a super-2 number, since 2×6651016171² = 88472032213807002482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6651316171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325508085 + 3325508086.

It is an arithmetic number, because the mean of its divisors is an integer number (3325508086).

Almost surely, 2^6651016171 is an apocalyptic number.

6651016171 is a deficient number, since it is larger than the sum of its proper divisors (1).

6651016171 is an equidigital number, since it uses as much as digits as its factorization.

6651016171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 6651016171 is about 81553.7624576573. The cubic root of 6651016171 is about 1880.5981357499.

The spelling of 6651016171 in words is "six billion, six hundred fifty-one million, sixteen thousand, one hundred seventy-one".