1112001616 has 60 divisors (see below), whose sum is σ = 2374567636. Its totient is φ = 504092160.

The previous prime is 1112001577. The next prime is 1112001643. The reversal of 1112001616 is 6161002111.

It can be written as a sum of positive squares in 2 ways, for example, as 23001616 + 1089000000 = 4796^2 + 33000^2 .

It is a super-2 number, since 2×1112001616² = 2473095187973222912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112001593 and 1112001602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1186300 + ... + 1187236.

Almost surely, 2^1112001616 is an apocalyptic number.

1112001616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112001616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187283818).

1112001616 is an abundant number, since it is smaller than the sum of its proper divisors (1262566020).

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

1112001616 is a wasteful number, since it uses less digits than its factorization.

1112001616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1112001616 is about 33346.6882313671. The cubic root of 1112001616 is about 1036.0207953370.

Adding to 1112001616 its reverse (6161002111), we get a palindrome (7273003727).

The spelling of 1112001616 in words is "one billion, one hundred twelve million, one thousand, six hundred sixteen".