8188722665642 has 8 divisors (see below), whose sum is σ = 12351704580000. Its totient is φ = 4071487805644.

The previous prime is 8188722665623. The next prime is 8188722665677. The reversal of 8188722665642 is 2465662278818.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11436763142 + ... + 11436763857.

It is an arithmetic number, because the mean of its divisors is an integer number (1543963072500).

Almost surely, 2^{8188722665642} is an apocalyptic number.

8188722665642 is a deficient number, since it is larger than the sum of its proper divisors (4162981914358).

8188722665642 is a wasteful number, since it uses less digits than its factorization.

8188722665642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22873527180.

The product of its digits is 123863040, while the sum is 65.

The spelling of 8188722665642 in words is "eight trillion, one hundred eighty-eight billion, seven hundred twenty-two million, six hundred sixty-five thousand, six hundred forty-two".