6617956201 has 2 divisors, whose sum is σ = 6617956202. Its totient is φ = 6617956200.

The previous prime is 6617956199. The next prime is 6617956207. The reversal of 6617956201 is 1026597166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6181104400 + 436851801 = 78620^2 + 20901^2 .

It is a cyclic number.

It is not a de Polignac number, because 6617956201 - 2¹ = 6617956199 is a prime.

Together with 6617956199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6617956207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308978100 + 3308978101.

It is an arithmetic number, because the mean of its divisors is an integer number (3308978101).

Almost surely, 2^6617956201 is an apocalyptic number.

It is an amenable number.

6617956201 is a deficient number, since it is larger than the sum of its proper divisors (1).

6617956201 is an equidigital number, since it uses as much as digits as its factorization.

6617956201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 6617956201 is about 81350.8217598323. The cubic root of 6617956201 is about 1877.4770178800.

The spelling of 6617956201 in words is "six billion, six hundred seventeen million, nine hundred fifty-six thousand, two hundred one".