6661484936 has 32 divisors (see below), whose sum is σ = 12551024640. Its totient is φ = 3314582208.

The previous prime is 6661484909. The next prime is 6661484939. The reversal of 6661484936 is 6394841666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6661484939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857401 + ... + 1860983.

It is an arithmetic number, because the mean of its divisors is an integer number (392219520).

Almost surely, 2^6661484936 is an apocalyptic number.

It is an amenable number.

6661484936 is a deficient number, since it is larger than the sum of its proper divisors (5889539704).

6661484936 is a wasteful number, since it uses less digits than its factorization.

6661484936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653 (or 4649 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 53.

The square root of 6661484936 is about 81617.9204341792. The cubic root of 6661484936 is about 1881.5843118469.

The spelling of 6661484936 in words is "six billion, six hundred sixty-one million, four hundred eighty-four thousand, nine hundred thirty-six".