111616160587 has 4 divisors (see below), whose sum is σ = 112261340880. Its totient is φ = 110970980296.

The previous prime is 111616160479. The next prime is 111616160629. The reversal of 111616160587 is 785061616111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785061616111 = 75083 ⋅10455917.

It is a cyclic number.

It is not a de Polignac number, because 111616160587 - 2¹¹ = 111616158539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111616100587) 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, 322589887 + ... + 322590232.

It is an arithmetic number, because the mean of its divisors is an integer number (28065335220).

Almost surely, 2^111616160587 is an apocalyptic number.

111616160587 is a deficient number, since it is larger than the sum of its proper divisors (645180293).

111616160587 is an equidigital number, since it uses as much as digits as its factorization.

111616160587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645180292.

The product of its (nonzero) digits is 60480, while the sum is 43.

Adding to 111616160587 its reverse (785061616111), we get a palindrome (896677776698).

The spelling of 111616160587 in words is "one hundred eleven billion, six hundred sixteen million, one hundred sixty thousand, five hundred eighty-seven".