352227645661 has 2 divisors, whose sum is σ = 352227645662. Its totient is φ = 352227645660.

The previous prime is 352227645659. The next prime is 352227645697. The reversal of 352227645661 is 166546722253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352087956900 + 139688761 = 593370^2 + 11819^2 .

It is an emirp because it is prime and its reverse (166546722253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 352227645661 - 2¹ = 352227645659 is a prime.

Together with 352227645659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352227645611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176113822830 + 176113822831.

It is an arithmetic number, because the mean of its divisors is an integer number (176113822831).

Almost surely, 2^352227645661 is an apocalyptic number.

It is an amenable number.

352227645661 is a deficient number, since it is larger than the sum of its proper divisors (1).

352227645661 is an equidigital number, since it uses as much as digits as its factorization.

352227645661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 49.

The spelling of 352227645661 in words is "three hundred fifty-two billion, two hundred twenty-seven million, six hundred forty-five thousand, six hundred sixty-one".