6655615603 has 16 divisors (see below), whose sum is σ = 8200071936. Its totient is φ = 5260488480.

The previous prime is 6655615601. The next prime is 6655615607. The reversal of 6655615603 is 3065165566.

It is not a de Polignac number, because 6655615603 - 2¹ = 6655615601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6655615603.

It is not an unprimeable number, because it can be changed into a prime (6655615601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50700 + ... + 126022.

It is an arithmetic number, because the mean of its divisors is an integer number (512504496).

Almost surely, 2^6655615603 is an apocalyptic number.

6655615603 is a deficient number, since it is larger than the sum of its proper divisors (1544456333).

6655615603 is a wasteful number, since it uses less digits than its factorization.

6655615603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76314.

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

The square root of 6655615603 is about 81581.9563567827. The cubic root of 6655615603 is about 1881.0315377006.

The spelling of 6655615603 in words is "six billion, six hundred fifty-five million, six hundred fifteen thousand, six hundred three".