2164435064629 has 2 divisors, whose sum is σ = 2164435064630. Its totient is φ = 2164435064628.

The previous prime is 2164435064609. The next prime is 2164435064633. The reversal of 2164435064629 is 9264605344612.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2041749494404 + 122685570225 = 1428898^2 + 350265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164435064629 - 2⁹ = 2164435064117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164435064609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082217532314 + 1082217532315.

It is an arithmetic number, because the mean of its divisors is an integer number (1082217532315).

Almost surely, 2^{2164435064629} is an apocalyptic number.

It is an amenable number.

2164435064629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164435064629 is an equidigital number, since it uses as much as digits as its factorization.

2164435064629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 2164435064629 in words is "two trillion, one hundred sixty-four billion, four hundred thirty-five million, sixty-four thousand, six hundred twenty-nine".