2163523564523 has 2 divisors, whose sum is σ = 2163523564524. Its totient is φ = 2163523564522.

The previous prime is 2163523564483. The next prime is 2163523564541. The reversal of 2163523564523 is 3254653253612.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2163523564523 - 2¹⁶ = 2163523498987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2163523564823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081761782261 + 1081761782262.

It is an arithmetic number, because the mean of its divisors is an integer number (1081761782262).

Almost surely, 2^{2163523564523} is an apocalyptic number.

2163523564523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163523564523 is an equidigital number, since it uses as much as digits as its factorization.

2163523564523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 47.

The spelling of 2163523564523 in words is "two trillion, one hundred sixty-three billion, five hundred twenty-three million, five hundred sixty-four thousand, five hundred twenty-three".