1120106556 has 144 divisors (see below), whose sum is σ = 3082060800. Its totient is φ = 355223232.

The previous prime is 1120106551. The next prime is 1120106567. The reversal of 1120106556 is 6556010211.

It is a happy number.

1120106556 is a `hidden beast` number, since 1 + 1 + 2 + 0 + 1 + 0 + 655 + 6 = 666.

It is a super-2 number, since 2×1120106556² = 2509277393588362272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120106551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2226601 + ... + 2227103.

It is an arithmetic number, because the mean of its divisors is an integer number (21403200).

Almost surely, 2^1120106556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120106556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1541030400).

1120106556 is an abundant number, since it is smaller than the sum of its proper divisors (1961954244).

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

1120106556 is a wasteful number, since it uses less digits than its factorization.

1120106556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1120106556 is about 33467.9930082460. The cubic root of 1120106556 is about 1038.5317533378.

Adding to 1120106556 its reverse (6556010211), we get a palindrome (7676116767).

The spelling of 1120106556 in words is "one billion, one hundred twenty million, one hundred six thousand, five hundred fifty-six".