3345659521 has 2 divisors, whose sum is σ = 3345659522. Its totient is φ = 3345659520.

The previous prime is 3345659519. The next prime is 3345659561. The reversal of 3345659521 is 1259565433.

3345659521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2697244225 + 648415296 = 51935^2 + 25464^2 .

It is a cyclic number.

It is not a de Polignac number, because 3345659521 - 2¹ = 3345659519 is a prime.

It is a super-2 number, since 2×3345659521² = 22386875260915898882, which contains 22 as substring.

Together with 3345659519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3345659561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672829760 + 1672829761.

It is an arithmetic number, because the mean of its divisors is an integer number (1672829761).

Almost surely, 2^3345659521 is an apocalyptic number.

It is an amenable number.

3345659521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3345659521 is an equidigital number, since it uses as much as digits as its factorization.

3345659521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 43.

The square root of 3345659521 is about 57841.6763329003. The cubic root of 3345659521 is about 1495.6406050948.

The spelling of 3345659521 in words is "three billion, three hundred forty-five million, six hundred fifty-nine thousand, five hundred twenty-one".