1111016106605 has 4 divisors (see below), whose sum is σ = 1333219327932. Its totient is φ = 888812885280.

The previous prime is 1111016106601. The next prime is 1111016106611. The reversal of 1111016106605 is 5066016101111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 621175693609 + 489840412996 = 788147^2 + 699886^2 .

It is not a de Polignac number, because 1111016106605 - 2² = 1111016106601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111016106601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111101610656 + ... + 111101610665.

It is an arithmetic number, because the mean of its divisors is an integer number (333304831983).

Almost surely, 2^{1111016106605} is an apocalyptic number.

It is an amenable number.

1111016106605 is a deficient number, since it is larger than the sum of its proper divisors (222203221327).

1111016106605 is an equidigital number, since it uses as much as digits as its factorization.

1111016106605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222203221326.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 1111016106605 in words is "one trillion, one hundred eleven billion, sixteen million, one hundred six thousand, six hundred five".