6603123361 has 4 divisors (see below), whose sum is σ = 6830817300. Its totient is φ = 6375429424.

The previous prime is 6603123353. The next prime is 6603123377. The reversal of 6603123361 is 1633213066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1320595600 + 5282527761 = 36340^2 + 72681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6603123361 - 2³ = 6603123353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6603123161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113846926 + ... + 113846983.

It is an arithmetic number, because the mean of its divisors is an integer number (1707704325).

Almost surely, 2^6603123361 is an apocalyptic number.

It is an amenable number.

6603123361 is a deficient number, since it is larger than the sum of its proper divisors (227693939).

6603123361 is a wasteful number, since it uses less digits than its factorization.

6603123361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227693938.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 6603123361 is about 81259.6047307640. The cubic root of 6603123361 is about 1876.0733041651.

The spelling of 6603123361 in words is "six billion, six hundred three million, one hundred twenty-three thousand, three hundred sixty-one".