111255405505 has 8 divisors (see below), whose sum is σ = 134557719552. Its totient is φ = 88303502448.

The previous prime is 111255405493. The next prime is 111255405529. The reversal of 111255405505 is 505504552111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111255405505 - 2⁹ = 111255404993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87602047 + ... + 87603316.

It is an arithmetic number, because the mean of its divisors is an integer number (16819714944).

Almost surely, 2^111255405505 is an apocalyptic number.

It is an amenable number.

111255405505 is a deficient number, since it is larger than the sum of its proper divisors (23302314047).

111255405505 is a wasteful number, since it uses less digits than its factorization.

111255405505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175205495.

The product of its (nonzero) digits is 25000, while the sum is 34.

Adding to 111255405505 its reverse (505504552111), we get a palindrome (616759957616).

The spelling of 111255405505 in words is "one hundred eleven billion, two hundred fifty-five million, four hundred five thousand, five hundred five".