111649424169 has 16 divisors (see below), whose sum is σ = 152098550784. Its totient is φ = 72829401600.

The previous prime is 111649424083. The next prime is 111649424203. The reversal of 111649424169 is 961424946111.

It is not a de Polignac number, because 111649424169 - 2¹⁹ = 111648899881 is a prime.

It is a super-2 number, since 2×111649424169² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111649424569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1562184 + ... + 1632089.

It is an arithmetic number, because the mean of its divisors is an integer number (9506159424).

Almost surely, 2^111649424169 is an apocalyptic number.

It is an amenable number.

111649424169 is a deficient number, since it is larger than the sum of its proper divisors (40449126615).

111649424169 is a wasteful number, since it uses less digits than its factorization.

111649424169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194528.

The product of its digits is 373248, while the sum is 48.

The spelling of 111649424169 in words is "one hundred eleven billion, six hundred forty-nine million, four hundred twenty-four thousand, one hundred sixty-nine".