2660386433 has 2 divisors, whose sum is σ = 2660386434. Its totient is φ = 2660386432.

The previous prime is 2660386409. The next prime is 2660386481. The reversal of 2660386433 is 3346830662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2644839184 + 15547249 = 51428^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 2660386433 - 2¹⁸ = 2660124289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2660386483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330193216 + 1330193217.

It is an arithmetic number, because the mean of its divisors is an integer number (1330193217).

Almost surely, 2^2660386433 is an apocalyptic number.

It is an amenable number.

2660386433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660386433 is an equidigital number, since it uses as much as digits as its factorization.

2660386433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 41.

The square root of 2660386433 is about 51578.9340041068. The cubic root of 2660386433 is about 1385.6330752801.

The spelling of 2660386433 in words is "two billion, six hundred sixty million, three hundred eighty-six thousand, four hundred thirty-three".