402341660569 has 2 divisors, whose sum is σ = 402341660570. Its totient is φ = 402341660568.

The previous prime is 402341660563. The next prime is 402341660683. The reversal of 402341660569 is 965066143204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295514006544 + 106827654025 = 543612^2 + 326845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402341660569 is a prime.

It is a super-2 number, since 2×402341660569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402341660563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201170830284 + 201170830285.

It is an arithmetic number, because the mean of its divisors is an integer number (201170830285).

Almost surely, 2^402341660569 is an apocalyptic number.

It is an amenable number.

402341660569 is a deficient number, since it is larger than the sum of its proper divisors (1).

402341660569 is an equidigital number, since it uses as much as digits as its factorization.

402341660569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 402341660569 in words is "four hundred two billion, three hundred forty-one million, six hundred sixty thousand, five hundred sixty-nine".