2665205429 has 2 divisors, whose sum is σ = 2665205430. Its totient is φ = 2665205428.

The previous prime is 2665205419. The next prime is 2665205441. The reversal of 2665205429 is 9245025662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1813908100 + 851297329 = 42590^2 + 29177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2665205429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665205419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332602714 + 1332602715.

It is an arithmetic number, because the mean of its divisors is an integer number (1332602715).

Almost surely, 2^2665205429 is an apocalyptic number.

It is an amenable number.

2665205429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665205429 is an equidigital number, since it uses as much as digits as its factorization.

2665205429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2665205429 is about 51625.6276378312. The cubic root of 2665205429 is about 1386.4692110196.

The spelling of 2665205429 in words is "two billion, six hundred sixty-five million, two hundred five thousand, four hundred twenty-nine".