1126321560 has 192 divisors, whose sum is σ = 4505417280. Its totient is φ = 237634560.

The previous prime is 1126321549. The next prime is 1126321579. The reversal of 1126321560 is 651236211.

1126321560 is a `hidden beast` number, since 1 + 12 + 632 + 15 + 6 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15570 + ... + 49950.

It is an arithmetic number, because the mean of its divisors is an integer number (23465715).

Almost surely, 2^1126321560 is an apocalyptic number.

1126321560 is a gapful number since it is divisible by the number (10) 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 1126321560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2252708640).

1126321560 is an abundant number, since it is smaller than the sum of its proper divisors (3379095720).

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

1126321560 is a wasteful number, since it uses less digits than its factorization.

1126321560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34418 (or 34411 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1126321560 is about 33560.7145335137. The cubic root of 1126321560 is about 1040.4490048388.

Adding to 1126321560 its reverse (651236211), we get a palindrome (1777557771).

It can be divided in two parts, 11263 and 21560, that added together give a palindrome (32823).

The spelling of 1126321560 in words is "one billion, one hundred twenty-six million, three hundred twenty-one thousand, five hundred sixty".