1163645712 has 60 divisors (see below), whose sum is σ = 3263029744. Its totient is φ = 387115200.

The previous prime is 1163645683. The next prime is 1163645759. The reversal of 1163645712 is 2175463611.

1163645712 is a `hidden beast` number, since 1 + 1 + 6 + 3 + 645 + 7 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67587 + ... + 83037.

Almost surely, 2^1163645712 is an apocalyptic number.

1163645712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1163645712 is an abundant number, since it is smaller than the sum of its proper divisors (2099384032).

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

1163645712 is a wasteful number, since it uses less digits than its factorization.

1163645712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988 (or 15979 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1163645712 is about 34112.2516407229. The cubic root of 1163645712 is about 1051.8171743954.

The spelling of 1163645712 in words is "one billion, one hundred sixty-three million, six hundred forty-five thousand, seven hundred twelve".