1616444112 has 20 divisors (see below), whose sum is σ = 4175814080. Its totient is φ = 538814688.

The previous prime is 1616444111. The next prime is 1616444119. The reversal of 1616444112 is 2114446161.

It is a super-2 number, since 2×1616444112² = 5225783134438937088, which contains 22 as substring.

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 1616444112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616444111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16837912 + ... + 16838007.

It is an arithmetic number, because the mean of its divisors is an integer number (208790704).

Almost surely, 2^1616444112 is an apocalyptic number.

1616444112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1616444112 is an abundant number, since it is smaller than the sum of its proper divisors (2559369968).

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

1616444112 is a wasteful number, since it uses less digits than its factorization.

1616444112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33675930 (or 33675924 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 1616444112 is about 40205.0259544749. The cubic root of 1616444112 is about 1173.6003523087.

The spelling of 1616444112 in words is "one billion, six hundred sixteen million, four hundred forty-four thousand, one hundred twelve".