1163645684 has 12 divisors (see below), whose sum is σ = 2041219908. Its totient is φ = 580440000.

The previous prime is 1163645683. The next prime is 1163645759. The reversal of 1163645684 is 4865463611.

It can be written as a sum of positive squares in 2 ways, for example, as 91738084 + 1071907600 = 9578^2 + 32740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163645683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343817 + ... + 347184.

It is an arithmetic number, because the mean of its divisors is an integer number (170101659).

Almost surely, 2^1163645684 is an apocalyptic number.

It is an amenable number.

1163645684 is a deficient number, since it is larger than the sum of its proper divisors (877574224).

1163645684 is a wasteful number, since it uses less digits than its factorization.

1163645684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691426 (or 691424 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 1163645684 is about 34112.2512303131. The cubic root of 1163645684 is about 1051.8171659590.

The spelling of 1163645684 in words is "one billion, one hundred sixty-three million, six hundred forty-five thousand, six hundred eighty-four".