1161321596 has 6 divisors (see below), whose sum is σ = 2032312800. Its totient is φ = 580660796.

The previous prime is 1161321593. The next prime is 1161321607. The reversal of 1161321596 is 6951231611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161321593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145165196 + ... + 145165203.

It is an arithmetic number, because the mean of its divisors is an integer number (338718800).

Almost surely, 2^1161321596 is an apocalyptic number.

It is an amenable number.

1161321596 is a deficient number, since it is larger than the sum of its proper divisors (870991204).

1161321596 is a wasteful number, since it uses less digits than its factorization.

1161321596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290330403 (or 290330401 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 1161321596 is about 34078.1689062074. The cubic root of 1161321596 is about 1051.1164529816.

The spelling of 1161321596 in words is "one billion, one hundred sixty-one million, three hundred twenty-one thousand, five hundred ninety-six".