6645110812 has 6 divisors (see below), whose sum is σ = 11628943928. Its totient is φ = 3322555404.

The previous prime is 6645110767. The next prime is 6645110821. The reversal of 6645110812 is 2180115466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830638848 + ... + 830638855.

Almost surely, 2^6645110812 is an apocalyptic number.

It is an amenable number.

6645110812 is a deficient number, since it is larger than the sum of its proper divisors (4983833116).

6645110812 is a wasteful number, since it uses less digits than its factorization.

6645110812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661277707 (or 1661277705 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 6645110812 is about 81517.5491044720. The cubic root of 6645110812 is about 1880.0413839540.

The spelling of 6645110812 in words is "six billion, six hundred forty-five million, one hundred ten thousand, eight hundred twelve".