355216227089 has 2 divisors, whose sum is σ = 355216227090. Its totient is φ = 355216227088.

The previous prime is 355216227083. The next prime is 355216227131. The reversal of 355216227089 is 980722612553.

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., 290323759489 + 64892467600 = 538817^2 + 254740^2 .

It is a cyclic number.

It is not a de Polignac number, because 355216227089 - 2⁴ = 355216227073 is a prime.

It is not a weakly prime, because it can be changed into another prime (355216227083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177608113544 + 177608113545.

It is an arithmetic number, because the mean of its divisors is an integer number (177608113545).

Almost surely, 2^355216227089 is an apocalyptic number.

It is an amenable number.

355216227089 is a deficient number, since it is larger than the sum of its proper divisors (1).

355216227089 is an equidigital number, since it uses as much as digits as its factorization.

355216227089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 355216227089 in words is "three hundred fifty-five billion, two hundred sixteen million, two hundred twenty-seven thousand, eighty-nine".