1123358656 has 112 divisors (see below), whose sum is σ = 2687311872. Its totient is φ = 455731200.

The previous prime is 1123358647. The next prime is 1123358683. The reversal of 1123358656 is 6568533211.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651876 + ... + 653596.

It is an arithmetic number, because the mean of its divisors is an integer number (23993856).

Almost surely, 2^1123358656 is an apocalyptic number.

1123358656 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 1123358656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1343655936).

1123358656 is an abundant number, since it is smaller than the sum of its proper divisors (1563953216).

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

1123358656 is a wasteful number, since it uses less digits than its factorization.

1123358656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1808 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 1123358656 is about 33516.5430198283. The cubic root of 1123358656 is about 1039.5358678482.

The spelling of 1123358656 in words is "one billion, one hundred twenty-three million, three hundred fifty-eight thousand, six hundred fifty-six".