1611442116 has 18 divisors (see below), whose sum is σ = 4073367662. Its totient is φ = 537147360.

The previous prime is 1611442039. The next prime is 1611442153. The reversal of 1611442116 is 6112441161.

1611442116 is a `hidden beast` number, since 1 + 611 + 4 + 42 + 1 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1003622400 + 607819716 = 31680^2 + 24654^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1611442116.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22381105 + ... + 22381176.

Almost surely, 2^1611442116 is an apocalyptic number.

It is an amenable number.

1611442116 is an abundant number, since it is smaller than the sum of its proper divisors (2461925546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1611442116 is a wasteful number, since it uses less digits than its factorization.

1611442116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44762291 (or 44762286 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1611442116 is about 40142.7716531881. The cubic root of 1611442116 is about 1172.3885545926.

Adding to 1611442116 its reverse (6112441161), we get a palindrome (7723883277).

The spelling of 1611442116 in words is "one billion, six hundred eleven million, four hundred forty-two thousand, one hundred sixteen".