2323765161521 has 2 divisors, whose sum is σ = 2323765161522. Its totient is φ = 2323765161520.

The previous prime is 2323765161499. The next prime is 2323765161563. The reversal of 2323765161521 is 1251615673232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2286809328400 + 36955833121 = 1512220^2 + 192239^2 .

It is a cyclic number.

It is not a de Polignac number, because 2323765161521 - 2¹⁸ = 2323764899377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2323765166521) 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, 1161882580760 + 1161882580761.

It is an arithmetic number, because the mean of its divisors is an integer number (1161882580761).

Almost surely, 2^{2323765161521} is an apocalyptic number.

It is an amenable number.

2323765161521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2323765161521 is an equidigital number, since it uses as much as digits as its factorization.

2323765161521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 44.

The spelling of 2323765161521 in words is "two trillion, three hundred twenty-three billion, seven hundred sixty-five million, one hundred sixty-one thousand, five hundred twenty-one".