111553434069 has 32 divisors (see below), whose sum is σ = 185456394240. Its totient is φ = 57944548800.

The previous prime is 111553434043. The next prime is 111553434079. The reversal of 111553434069 is 960434355111.

It is not a de Polignac number, because 111553434069 - 2⁷ = 111553433941 is a prime.

It is a super-2 number, since 2×111553434069² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111553434069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111553434029) 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, 4718859 + ... + 4742439.

It is an arithmetic number, because the mean of its divisors is an integer number (5795512320).

Almost surely, 2^111553434069 is an apocalyptic number.

It is an amenable number.

111553434069 is a deficient number, since it is larger than the sum of its proper divisors (73902960171).

111553434069 is a wasteful number, since it uses less digits than its factorization.

111553434069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44081.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 111553434069 in words is "one hundred eleven billion, five hundred fifty-three million, four hundred thirty-four thousand, sixty-nine".