116005591 has 16 divisors (see below), whose sum is σ = 127714048. Its totient is φ = 104716800.

The previous prime is 116005577. The next prime is 116005601. The reversal of 116005591 is 195500611.

It is a cyclic number.

It is not a de Polignac number, because 116005591 - 2¹¹ = 116003543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116009591) 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, 190810 + ... + 191416.

It is an arithmetic number, because the mean of its divisors is an integer number (7982128).

Almost surely, 2^116005591 is an apocalyptic number.

116005591 is a deficient number, since it is larger than the sum of its proper divisors (11708457).

116005591 is a wasteful number, since it uses less digits than its factorization.

116005591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 116005591 is about 10770.5891668005. The cubic root of 116005591 is about 487.7077314128.

The spelling of 116005591 in words is "one hundred sixteen million, five thousand, five hundred ninety-one".