2164222753361 has 2 divisors, whose sum is σ = 2164222753362. Its totient is φ = 2164222753360.

The previous prime is 2164222753351. The next prime is 2164222753393. The reversal of 2164222753361 is 1633572224612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162860289600 + 1001362463761 = 1078360^2 + 1000681^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164222753361 - 2²² = 2164218559057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2164222753321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082111376680 + 1082111376681.

It is an arithmetic number, because the mean of its divisors is an integer number (1082111376681).

Almost surely, 2^{2164222753361} is an apocalyptic number.

It is an amenable number.

2164222753361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164222753361 is an equidigital number, since it uses as much as digits as its factorization.

2164222753361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 44.

Adding to 2164222753361 its reverse (1633572224612), we get a palindrome (3797794977973).

The spelling of 2164222753361 in words is "two trillion, one hundred sixty-four billion, two hundred twenty-two million, seven hundred fifty-three thousand, three hundred sixty-one".