6603473661 has 8 divisors (see below), whose sum is σ = 8807790624. Its totient is φ = 4400736240.

The previous prime is 6603473603. The next prime is 6603473663. The reversal of 6603473661 is 1663743066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6603473661 - 2⁷ = 6603473533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6603473663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385095 + ... + 401876.

It is an arithmetic number, because the mean of its divisors is an integer number (1100973828).

Almost surely, 2^6603473661 is an apocalyptic number.

It is an amenable number.

6603473661 is a deficient number, since it is larger than the sum of its proper divisors (2204316963).

6603473661 is a wasteful number, since it uses less digits than its factorization.

6603473661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789771.

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 6603473661 is about 81261.7601396869. The cubic root of 6603473661 is about 1876.1064792158.

The spelling of 6603473661 in words is "six billion, six hundred three million, four hundred seventy-three thousand, six hundred sixty-one".