3450615661 has 2 divisors, whose sum is σ = 3450615662. Its totient is φ = 3450615660.

The previous prime is 3450615659. The next prime is 3450615667. The reversal of 3450615661 is 1665160543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3379213161 + 71402500 = 58131^2 + 8450^2 .

It is a cyclic number.

It is not a de Polignac number, because 3450615661 - 2¹ = 3450615659 is a prime.

Together with 3450615659, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3450615661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3450615667) 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, 1725307830 + 1725307831.

It is an arithmetic number, because the mean of its divisors is an integer number (1725307831).

Almost surely, 2^3450615661 is an apocalyptic number.

It is an amenable number.

3450615661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3450615661 is an equidigital number, since it uses as much as digits as its factorization.

3450615661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 3450615661 is about 58741.9412430335. The cubic root of 3450615661 is about 1511.1196848620.

The spelling of 3450615661 in words is "three billion, four hundred fifty million, six hundred fifteen thousand, six hundred sixty-one".