111005001606 has 16 divisors (see below), whose sum is σ = 222811486704. Its totient is φ = 36868086624.

The previous prime is 111005001589. The next prime is 111005001631. The reversal of 111005001606 is 606100500111.

It is a super-2 number, since 2×111005001606² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33393345 + ... + 33396668.

It is an arithmetic number, because the mean of its divisors is an integer number (13925717919).

Almost surely, 2^111005001606 is an apocalyptic number.

111005001606 is an abundant number, since it is smaller than the sum of its proper divisors (111806485098).

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

111005001606 is a wasteful number, since it uses less digits than its factorization.

111005001606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66790295.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 111005001606 its reverse (606100500111), we get a palindrome (717105501717).

The spelling of 111005001606 in words is "one hundred eleven billion, five million, one thousand, six hundred six".