8011644997806 has 48 divisors (see below), whose sum is σ = 17959536176400. Its totient is φ = 2578115723904.

The previous prime is 8011644997787. The next prime is 8011644997823. The reversal of 8011644997806 is 6087994461108.

8011644997806 is a `hidden beast` number, since 8 + 0 + 1 + 1 + 64 + 499 + 7 + 80 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2896410 + ... + 4940898.

It is an arithmetic number, because the mean of its divisors is an integer number (374157003675).

Almost surely, 2^{8011644997806} is an apocalyptic number.

8011644997806 is an abundant number, since it is smaller than the sum of its proper divisors (9947891178594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8011644997806 is a wasteful number, since it uses less digits than its factorization.

8011644997806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052033 (or 2052030 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 8011644997806 in words is "eight trillion, eleven billion, six hundred forty-four million, nine hundred ninety-seven thousand, eight hundred six".