6646229235 has 12 divisors (see below), whose sum is σ = 11520130752. Its totient is φ = 3544655568.

The previous prime is 6646229231. The next prime is 6646229299. The reversal of 6646229235 is 5329226466.

It is not a de Polignac number, because 6646229235 - 2² = 6646229231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 147693983 = 6646229235 / (6 + 6 + 4 + 6 + 2 + 2 + 9 + 2 + 3 + 5).

It is not an unprimeable number, because it can be changed into a prime (6646229231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73846947 + ... + 73847036.

It is an arithmetic number, because the mean of its divisors is an integer number (960010896).

Almost surely, 2^6646229235 is an apocalyptic number.

6646229235 is a deficient number, since it is larger than the sum of its proper divisors (4873901517).

6646229235 is a wasteful number, since it uses less digits than its factorization.

6646229235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147693994 (or 147693991 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 6646229235 is about 81524.4088295033. The cubic root of 6646229235 is about 1880.1468531543.

The spelling of 6646229235 in words is "six billion, six hundred forty-six million, two hundred twenty-nine thousand, two hundred thirty-five".