6617560969 has 2 divisors, whose sum is σ = 6617560970. Its totient is φ = 6617560968.

The previous prime is 6617560967. The next prime is 6617560991. The reversal of 6617560969 is 9690657166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4635975744 + 1981585225 = 68088^2 + 44515^2 .

It is a cyclic number.

It is not a de Polignac number, because 6617560969 - 2¹ = 6617560967 is a prime.

It is a super-2 number, since 2×6617560969² = 87584226356864437922, which contains 22 as substring.

Together with 6617560967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6617560967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308780484 + 3308780485.

It is an arithmetic number, because the mean of its divisors is an integer number (3308780485).

Almost surely, 2^6617560969 is an apocalyptic number.

It is an amenable number.

6617560969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6617560969 is an equidigital number, since it uses as much as digits as its factorization.

6617560969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 6617560969 is about 81348.3925409716. The cubic root of 6617560969 is about 1877.4396421028.

The spelling of 6617560969 in words is "six billion, six hundred seventeen million, five hundred sixty thousand, nine hundred sixty-nine".