220166413 has 2 divisors, whose sum is σ = 220166414. Its totient is φ = 220166412.

The previous prime is 220166411. The next prime is 220166431. The reversal of 220166413 is 314661022.

Together with next prime (220166431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220166244 + 169 = 14838^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 220166413 - 2¹ = 220166411 is a prime.

Together with 220166411, 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 (220166411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110083206 + 110083207.

It is an arithmetic number, because the mean of its divisors is an integer number (110083207).

Almost surely, 2^220166413 is an apocalyptic number.

It is an amenable number.

220166413 is a deficient number, since it is larger than the sum of its proper divisors (1).

220166413 is an equidigital number, since it uses as much as digits as its factorization.

220166413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 220166413 is about 14838.0056948365. The cubic root of 220166413 is about 603.8332480116.

The spelling of 220166413 in words is "two hundred twenty million, one hundred sixty-six thousand, four hundred thirteen".