152566455230221 has 2 divisors, whose sum is σ = 152566455230222. Its totient is φ = 152566455230220.

The previous prime is 152566455230219. The next prime is 152566455230263. The reversal of 152566455230221 is 122032554665251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136928495706025 + 15637959524196 = 11701645^2 + 3954486^2 .

It is a cyclic number.

It is not a de Polignac number, because 152566455230221 - 2¹ = 152566455230219 is a prime.

It is a super-2 number, since 2×152566455230221² (a number of 29 digits) contains 22 as substring.

Together with 152566455230219, 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 (152566455230201) 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, 76283227615110 + 76283227615111.

It is an arithmetic number, because the mean of its divisors is an integer number (76283227615111).

Almost surely, 2^{152566455230221} is an apocalyptic number.

It is an amenable number.

152566455230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

152566455230221 is an equidigital number, since it uses as much as digits as its factorization.

152566455230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 152566455230221 in words is "one hundred fifty-two trillion, five hundred sixty-six billion, four hundred fifty-five million, two hundred thirty thousand, two hundred twenty-one".