6605421231 has 8 divisors (see below), whose sum is σ = 9270766720. Its totient is φ = 4171844952.

The previous prime is 6605421203. The next prime is 6605421283. The reversal of 6605421231 is 1321245066.

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

It is not a de Polignac number, because 6605421231 - 2⁶ = 6605421167 is a prime.

It is a super-2 number, since 2×6605421231² = 87263179277891110722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605421631) 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, 57942235 + ... + 57942348.

It is an arithmetic number, because the mean of its divisors is an integer number (1158845840).

Almost surely, 2^6605421231 is an apocalyptic number.

6605421231 is a deficient number, since it is larger than the sum of its proper divisors (2665345489).

6605421231 is a wasteful number, since it uses less digits than its factorization.

6605421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115884605.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6605421231 is about 81273.7425679413. The cubic root of 6605421231 is about 1876.2909018258.

Adding to 6605421231 its reverse (1321245066), we get a palindrome (7926666297).

The spelling of 6605421231 in words is "six billion, six hundred five million, four hundred twenty-one thousand, two hundred thirty-one".