3220746514669 has 2 divisors, whose sum is σ = 3220746514670. Its totient is φ = 3220746514668.

The previous prime is 3220746514649. The next prime is 3220746514717. The reversal of 3220746514669 is 9664156470223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2394329159044 + 826417355625 = 1547362^2 + 909075^2 .

It is an emirp because it is prime and its reverse (9664156470223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3220746514669 - 2²⁹ = 3220209643757 is a prime.

It is a super-2 number, since 2×3220746514669² (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 (3220746514649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610373257334 + 1610373257335.

It is an arithmetic number, because the mean of its divisors is an integer number (1610373257335).

Almost surely, 2^{3220746514669} is an apocalyptic number.

It is an amenable number.

3220746514669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220746514669 is an equidigital number, since it uses as much as digits as its factorization.

3220746514669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 3220746514669 in words is "three trillion, two hundred twenty billion, seven hundred forty-six million, five hundred fourteen thousand, six hundred sixty-nine".