352660655521 has 2 divisors, whose sum is σ = 352660655522. Its totient is φ = 352660655520.

The previous prime is 352660655519. The next prime is 352660655561. The reversal of 352660655521 is 125556066253.

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., 311264683921 + 41395971600 = 557911^2 + 203460^2 .

It is a cyclic number.

It is not a de Polignac number, because 352660655521 - 2¹ = 352660655519 is a prime.

It is a super-3 number, since 3×352660655521³ (a number of 36 digits) contains 333 as substring.

Together with 352660655519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (352660655561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176330327760 + 176330327761.

It is an arithmetic number, because the mean of its divisors is an integer number (176330327761).

Almost surely, 2^352660655521 is an apocalyptic number.

It is an amenable number.

352660655521 is a deficient number, since it is larger than the sum of its proper divisors (1).

352660655521 is an equidigital number, since it uses as much as digits as its factorization.

352660655521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 352660655521 in words is "three hundred fifty-two billion, six hundred sixty million, six hundred fifty-five thousand, five hundred twenty-one".