6557566603 has 16 divisors (see below), whose sum is σ = 7604513280. Its totient is φ = 5538254400.

The previous prime is 6557566541. The next prime is 6557566627. The reversal of 6557566603 is 3066657556.

6557566603 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6557566603 - 2¹³ = 6557558411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6557566663) 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, 1159663 + ... + 1165303.

It is an arithmetic number, because the mean of its divisors is an integer number (475282080).

Almost surely, 2^6557566603 is an apocalyptic number.

6557566603 is a deficient number, since it is larger than the sum of its proper divisors (1046946677).

6557566603 is a wasteful number, since it uses less digits than its factorization.

6557566603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8058.

The product of its (nonzero) digits is 3402000, while the sum is 49.

The square root of 6557566603 is about 80978.8034179315. The cubic root of 6557566603 is about 1871.7488289639.

The spelling of 6557566603 in words is "six billion, five hundred fifty-seven million, five hundred sixty-six thousand, six hundred three".