1116055491 has 16 divisors (see below), whose sum is σ = 1581617664. Its totient is φ = 697599104.

The previous prime is 1116055483. The next prime is 1116055537. The reversal of 1116055491 is 1945506111.

It is a cyclic number.

It is not a de Polignac number, because 1116055491 - 2³ = 1116055483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1116055471) 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, 28191 + ... + 55016.

It is an arithmetic number, because the mean of its divisors is an integer number (98851104).

Almost surely, 2^1116055491 is an apocalyptic number.

1116055491 is a deficient number, since it is larger than the sum of its proper divisors (465562173).

1116055491 is a wasteful number, since it uses less digits than its factorization.

1116055491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83490.

The product of its (nonzero) digits is 5400, while the sum is 33.

The square root of 1116055491 is about 33407.4167064740. The cubic root of 1116055491 is about 1037.2782291943.

The spelling of 1116055491 in words is "one billion, one hundred sixteen million, fifty-five thousand, four hundred ninety-one".