1181568116 has 6 divisors (see below), whose sum is σ = 2067744210. Its totient is φ = 590784056.

The previous prime is 1181568079. The next prime is 1181568133. The reversal of 1181568116 is 6118651811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1074528400 + 107039716 = 32780^2 + 10346^2 .

It is a super-2 number, since 2×1181568116² = 2792206425495578912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1181568116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147696011 + ... + 147696018.

It is an arithmetic number, because the mean of its divisors is an integer number (344624035).

Almost surely, 2^1181568116 is an apocalyptic number.

It is an amenable number.

1181568116 is a deficient number, since it is larger than the sum of its proper divisors (886176094).

1181568116 is a wasteful number, since it uses less digits than its factorization.

1181568116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295392033 (or 295392031 counting only the distinct ones).

The product of its digits is 11520, while the sum is 38.

The square root of 1181568116 is about 34373.9453074563. The cubic root of 1181568116 is about 1057.1896947734.

The spelling of 1181568116 in words is "one billion, one hundred eighty-one million, five hundred sixty-eight thousand, one hundred sixteen".