111100165506506 has 8 divisors (see below), whose sum is σ = 181800270828864. Its totient is φ = 50500075230220.

The previous prime is 111100165506481. The next prime is 111100165506611. The reversal of 111100165506506 is 605605561001111.

It is a happy number.

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

It is a super-3 number, since 3×111100165506506³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111100165506506.

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, 2525003761490 + ... + 2525003761533.

It is an arithmetic number, because the mean of its divisors is an integer number (22725033853608).

Almost surely, 2^{111100165506506} is an apocalyptic number.

111100165506506 is a deficient number, since it is larger than the sum of its proper divisors (70700105322358).

111100165506506 is a wasteful number, since it uses less digits than its factorization.

111100165506506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050007523036.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 111100165506506 in words is "one hundred eleven trillion, one hundred billion, one hundred sixty-five million, five hundred six thousand, five hundred six".