111562788161 has 32 divisors (see below), whose sum is σ = 128495911680. Its totient is φ = 95869312000.

The previous prime is 111562788137. The next prime is 111562788163. The reversal of 111562788161 is 161887265111.

It is not a de Polignac number, because 111562788161 - 2¹⁰ = 111562787137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111562788163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14535821 + ... + 14543493.

It is an arithmetic number, because the mean of its divisors is an integer number (4015497240).

Almost surely, 2^111562788161 is an apocalyptic number.

111562788161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111562788161 is a deficient number, since it is larger than the sum of its proper divisors (16933123519).

111562788161 is a wasteful number, since it uses less digits than its factorization.

111562788161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377.

The product of its digits is 161280, while the sum is 47.

The spelling of 111562788161 in words is "one hundred eleven billion, five hundred sixty-two million, seven hundred eighty-eight thousand, one hundred sixty-one".