6603652645 has 4 divisors (see below), whose sum is σ = 7924383180. Its totient is φ = 5282922112.

The previous prime is 6603652639. The next prime is 6603652651. The reversal of 6603652645 is 5462563066.

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

It is an interprime number because it is at equal distance from previous prime (6603652639) and next prime (6603652651).

It can be written as a sum of positive squares in 2 ways, for example, as 1385179524 + 5218473121 = 37218^2 + 72239^2 .

It is a cyclic number.

It is not a de Polignac number, because 6603652645 - 2¹⁵ = 6603619877 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, 660365260 + ... + 660365269.

It is an arithmetic number, because the mean of its divisors is an integer number (1981095795).

Almost surely, 2^6603652645 is an apocalyptic number.

It is an amenable number.

6603652645 is a deficient number, since it is larger than the sum of its proper divisors (1320730535).

6603652645 is a wasteful number, since it uses less digits than its factorization.

6603652645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320730534.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 6603652645 is about 81262.8614128250. The cubic root of 6603652645 is about 1876.1234293860.

The spelling of 6603652645 in words is "six billion, six hundred three million, six hundred fifty-two thousand, six hundred forty-five".