2228951066161 has 2 divisors, whose sum is σ = 2228951066162. Its totient is φ = 2228951066160.

The previous prime is 2228951066113. The next prime is 2228951066213. The reversal of 2228951066161 is 1616601598222.

It is a happy number.

2228951066161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1984030005136 + 244921061025 = 1408556^2 + 494895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228951066161 - 2²⁵ = 2228917511729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2228951069161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114475533080 + 1114475533081.

It is an arithmetic number, because the mean of its divisors is an integer number (1114475533081).

Almost surely, 2^{2228951066161} is an apocalyptic number.

It is an amenable number.

2228951066161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228951066161 is an equidigital number, since it uses as much as digits as its factorization.

2228951066161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 2228951066161 in words is "two trillion, two hundred twenty-eight billion, nine hundred fifty-one million, sixty-six thousand, one hundred sixty-one".