11602881155 has 4 divisors (see below), whose sum is σ = 13923457392. Its totient is φ = 9282304920.

The previous prime is 11602881151. The next prime is 11602881209. The reversal of 11602881155 is 55118820611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55118820611 = 177887 ⋅309853.

It is not a de Polignac number, because 11602881155 - 2² = 11602881151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11602881151) 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, 1160288111 + ... + 1160288120.

It is an arithmetic number, because the mean of its divisors is an integer number (3480864348).

Almost surely, 2^11602881155 is an apocalyptic number.

11602881155 is a deficient number, since it is larger than the sum of its proper divisors (2320576237).

11602881155 is an equidigital number, since it uses as much as digits as its factorization.

11602881155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320576236.

The product of its (nonzero) digits is 19200, while the sum is 38.

The spelling of 11602881155 in words is "eleven billion, six hundred two million, eight hundred eighty-one thousand, one hundred fifty-five".