1611440441112 has 16 divisors (see below), whose sum is σ = 4028601102840. Its totient is φ = 537146813696.

The previous prime is 1611440441099. The next prime is 1611440441147. The reversal of 1611440441112 is 2111440441161.

It is a self number, because there is not a number n which added to its sum of digits gives 1611440441112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33571675833 + ... + 33571675880.

Almost surely, 2^{1611440441112} is an apocalyptic number.

1611440441112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1611440441112 is an abundant number, since it is smaller than the sum of its proper divisors (2417160661728).

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

1611440441112 is a wasteful number, since it uses less digits than its factorization.

1611440441112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67143351722 (or 67143351718 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

Adding to 1611440441112 its reverse (2111440441161), we get a palindrome (3722880882273).

The spelling of 1611440441112 in words is "one trillion, six hundred eleven billion, four hundred forty million, four hundred forty-one thousand, one hundred twelve".