1080799556 has 6 divisors (see below), whose sum is σ = 1891399230. Its totient is φ = 540399776.

The previous prime is 1080799547. The next prime is 1080799561. The reversal of 1080799556 is 6559970801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 984955456 + 95844100 = 31384^2 + 9790^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135099941 + ... + 135099948.

It is an arithmetic number, because the mean of its divisors is an integer number (315233205).

Almost surely, 2^1080799556 is an apocalyptic number.

It is an amenable number.

1080799556 is a deficient number, since it is larger than the sum of its proper divisors (810599674).

1080799556 is a wasteful number, since it uses less digits than its factorization.

1080799556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270199893 (or 270199891 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 1080799556 is about 32875.5160567861. The cubic root of 1080799556 is about 1026.2386947224.

The spelling of 1080799556 in words is "one billion, eighty million, seven hundred ninety-nine thousand, five hundred fifty-six".