2223620687161 has 2 divisors, whose sum is σ = 2223620687162. Its totient is φ = 2223620687160.

The previous prime is 2223620687149. The next prime is 2223620687191. The reversal of 2223620687161 is 1617860263222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038238773561 + 185381913600 = 1427669^2 + 430560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223620687161 - 2¹³ = 2223620678969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2223620687131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111810343580 + 1111810343581.

It is an arithmetic number, because the mean of its divisors is an integer number (1111810343581).

Almost surely, 2^{2223620687161} is an apocalyptic number.

It is an amenable number.

2223620687161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223620687161 is an equidigital number, since it uses as much as digits as its factorization.

2223620687161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 2223620687161 in words is "two trillion, two hundred twenty-three billion, six hundred twenty million, six hundred eighty-seven thousand, one hundred sixty-one".