12069618661986 has 16 divisors (see below), whose sum is σ = 25188769381824. Its totient is φ = 3848284211024.

The previous prime is 12069618661957. The next prime is 12069618662071. The reversal of 12069618661986 is 68916681696021.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a self number, because there is not a number n which added to its sum of digits gives 12069618661986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43730502261 + ... + 43730502536.

It is an arithmetic number, because the mean of its divisors is an integer number (1574298086364).

Almost surely, 2^{12069618661986} is an apocalyptic number.

12069618661986 is an abundant number, since it is smaller than the sum of its proper divisors (13119150719838).

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

12069618661986 is a wasteful number, since it uses less digits than its factorization.

12069618661986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87461004825.

The product of its (nonzero) digits is 80621568, while the sum is 69.

The spelling of 12069618661986 in words is "twelve trillion, sixty-nine billion, six hundred eighteen million, six hundred sixty-one thousand, nine hundred eighty-six".