5571667625669 has 2 divisors, whose sum is σ = 5571667625670. Its totient is φ = 5571667625668.

The previous prime is 5571667625609. The next prime is 5571667625717. The reversal of 5571667625669 is 9665267661755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3514987528900 + 2056680096769 = 1874830^2 + 1434113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5571667625669 is a prime.

It is a super-2 number, since 2×5571667625669² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5571667625609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785833812834 + 2785833812835.

It is an arithmetic number, because the mean of its divisors is an integer number (2785833812835).

Almost surely, 2^{5571667625669} is an apocalyptic number.

It is an amenable number.

5571667625669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5571667625669 is an equidigital number, since it uses as much as digits as its factorization.

5571667625669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304000, while the sum is 71.

The spelling of 5571667625669 in words is "five trillion, five hundred seventy-one billion, six hundred sixty-seven million, six hundred twenty-five thousand, six hundred sixty-nine".