11161103655 has 16 divisors (see below), whose sum is σ = 19231440480. Its totient is φ = 5494697088.

The previous prime is 11161103627. The next prime is 11161103713. The reversal of 11161103655 is 55630116111.

It is not a de Polignac number, because 11161103655 - 2²⁰ = 11160055079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28618020 + ... + 28618409.

It is an arithmetic number, because the mean of its divisors is an integer number (1201965030).

Almost surely, 2^11161103655 is an apocalyptic number.

11161103655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11161103655 is a deficient number, since it is larger than the sum of its proper divisors (8070336825).

11161103655 is a wasteful number, since it uses less digits than its factorization.

11161103655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57236450.

The product of its (nonzero) digits is 2700, while the sum is 30.

Adding to 11161103655 its reverse (55630116111), we get a palindrome (66791219766).

The spelling of 11161103655 in words is "eleven billion, one hundred sixty-one million, one hundred three thousand, six hundred fifty-five".