6603540245 has 4 divisors (see below), whose sum is σ = 7924248300. Its totient is φ = 5282832192.

The previous prime is 6603540233. The next prime is 6603540263. The reversal of 6603540245 is 5420453066.

It is a happy number.

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 747311569 + 5856228676 = 27337^2 + 76526^2 .

It is a cyclic number.

It is not a de Polignac number, because 6603540245 - 2²⁰ = 6602491669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660354020 + ... + 660354029.

It is an arithmetic number, because the mean of its divisors is an integer number (1981062075).

Almost surely, 2^6603540245 is an apocalyptic number.

It is an amenable number.

6603540245 is a deficient number, since it is larger than the sum of its proper divisors (1320708055).

6603540245 is a wasteful number, since it uses less digits than its factorization.

6603540245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320708054.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 6603540245 is about 81262.1698270481. The cubic root of 6603540245 is about 1876.1127848997.

The spelling of 6603540245 in words is "six billion, six hundred three million, five hundred forty thousand, two hundred forty-five".