8122199668 has 36 divisors (see below), whose sum is σ = 16185905568. Its totient is φ = 3530144640.

The previous prime is 8122199653. The next prime is 8122199681. The reversal of 8122199668 is 8669912218.

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 11 ways as a sum of consecutive naturals, for example, 2865580 + ... + 2868412.

It is an arithmetic number, because the mean of its divisors is an integer number (449608488).

Almost surely, 2^8122199668 is an apocalyptic number.

It is an amenable number.

8122199668 is a deficient number, since it is larger than the sum of its proper divisors (8063705900).

8122199668 is a wasteful number, since it uses less digits than its factorization.

8122199668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704 (or 2869 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The square root of 8122199668 is about 90123.2471008452. The cubic root of 8122199668 is about 2010.1318913809.

The spelling of 8122199668 in words is "eight billion, one hundred twenty-two million, one hundred ninety-nine thousand, six hundred sixty-eight".