1111151055065 has 4 divisors (see below), whose sum is σ = 1333381266084. Its totient is φ = 888920844048.

The previous prime is 1111151055059. The next prime is 1111151055083. The reversal of 1111151055065 is 5605501511111.

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 484197480649 + 626953574416 = 695843^2 + 791804^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111151055065 - 2⁸ = 1111151054809 is a prime.

It is a Duffinian 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, 111115105502 + ... + 111115105511.

It is an arithmetic number, because the mean of its divisors is an integer number (333345316521).

Almost surely, 2^{1111151055065} is an apocalyptic number.

It is an amenable number.

1111151055065 is a deficient number, since it is larger than the sum of its proper divisors (222230211019).

1111151055065 is an equidigital number, since it uses as much as digits as its factorization.

1111151055065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222230211018.

The product of its (nonzero) digits is 3750, while the sum is 32.

Adding to 1111151055065 its reverse (5605501511111), we get a palindrome (6716652566176).

The spelling of 1111151055065 in words is "one trillion, one hundred eleven billion, one hundred fifty-one million, fifty-five thousand, sixty-five".