6645966284 has 6 divisors (see below), whose sum is σ = 11630441004. Its totient is φ = 3322983140.

The previous prime is 6645966269. The next prime is 6645966329. The reversal of 6645966284 is 4826695466.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830745782 + ... + 830745789.

It is an arithmetic number, because the mean of its divisors is an integer number (1938406834).

Almost surely, 2^6645966284 is an apocalyptic number.

It is an amenable number.

6645966284 is a deficient number, since it is larger than the sum of its proper divisors (4984474720).

6645966284 is a wasteful number, since it uses less digits than its factorization.

6645966284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661491575 (or 1661491573 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 56.

The square root of 6645966284 is about 81522.7961002320. The cubic root of 6645966284 is about 1880.1220574896.

The spelling of 6645966284 in words is "six billion, six hundred forty-five million, nine hundred sixty-six thousand, two hundred eighty-four".