166616111626386 has 8 divisors (see below), whose sum is σ = 333232223252784. Its totient is φ = 55538703875460.

The previous prime is 166616111626379. The next prime is 166616111626403. The reversal of 166616111626386 is 683626111616661.

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

166616111626386 is an admirable number.

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, 13884675968860 + ... + 13884675968871.

It is an arithmetic number, because the mean of its divisors is an integer number (41654027906598).

Almost surely, 2^{166616111626386} is an apocalyptic number.

166616111626386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166616111626386 is a wasteful number, since it uses less digits than its factorization.

166616111626386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27769351937736.

The product of its digits is 13436928, while the sum is 60.

The spelling of 166616111626386 in words is "one hundred sixty-six trillion, six hundred sixteen billion, one hundred eleven million, six hundred twenty-six thousand, three hundred eighty-six".