1116665541 has 16 divisors (see below), whose sum is σ = 1662724800. Its totient is φ = 740661264.

The previous prime is 1116665531. The next prime is 1116665569. The reversal of 1116665541 is 1455666111.

1116665541 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1116665541 - 2⁵ = 1116665509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1116665496 and 1116665505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116665531) 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, 99651 + ... + 110288.

It is an arithmetic number, because the mean of its divisors is an integer number (103920300).

Almost surely, 2^1116665541 is an apocalyptic number.

It is an amenable number.

1116665541 is a deficient number, since it is larger than the sum of its proper divisors (546059259).

1116665541 is a wasteful number, since it uses less digits than its factorization.

1116665541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210145 (or 210139 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 1116665541 is about 33416.5459166563. The cubic root of 1116665541 is about 1037.4671912207.

The spelling of 1116665541 in words is "one billion, one hundred sixteen million, six hundred sixty-five thousand, five hundred forty-one".