2164435064653 has 2 divisors, whose sum is σ = 2164435064654. Its totient is φ = 2164435064652.

The previous prime is 2164435064633. The next prime is 2164435064683. The reversal of 2164435064653 is 3564605344612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1679569344324 + 484865720329 = 1295982^2 + 696323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164435064653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2164435064597 and 2164435064606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164435064633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082217532326 + 1082217532327.

It is an arithmetic number, because the mean of its divisors is an integer number (1082217532327).

Almost surely, 2^{2164435064653} is an apocalyptic number.

It is an amenable number.

2164435064653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164435064653 is an equidigital number, since it uses as much as digits as its factorization.

2164435064653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 2164435064653 in words is "two trillion, one hundred sixty-four billion, four hundred thirty-five million, sixty-four thousand, six hundred fifty-three".