1161783560 has 32 divisors (see below), whose sum is σ = 2987444160. Its totient is φ = 398325696.

The previous prime is 1161783547. The next prime is 1161783607. The reversal of 1161783560 is 653871611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074334 + ... + 2074893.

It is an arithmetic number, because the mean of its divisors is an integer number (93357630).

Almost surely, 2^1161783560 is an apocalyptic number.

1161783560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161783560 is an abundant number, since it is smaller than the sum of its proper divisors (1825660600).

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

1161783560 is a wasteful number, since it uses less digits than its factorization.

1161783560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149245 (or 4149241 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1161783560 is about 34084.9462373054. The cubic root of 1161783560 is about 1051.2558096107.

The spelling of 1161783560 in words is "one billion, one hundred sixty-one million, seven hundred eighty-three thousand, five hundred sixty".