1161326064 has 20 divisors (see below), whose sum is σ = 3000092456. Its totient is φ = 387108672.

The previous prime is 1161326063. The next prime is 1161326071. The reversal of 1161326064 is 4606231611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161326063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12097099 + ... + 12097194.

Almost surely, 2^1161326064 is an apocalyptic number.

It is an amenable number.

1161326064 is an abundant number, since it is smaller than the sum of its proper divisors (1838766392).

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

1161326064 is a wasteful number, since it uses less digits than its factorization.

1161326064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24194304 (or 24194298 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1161326064 is about 34078.2344613098. The cubic root of 1161326064 is about 1051.1178009809.

Adding to 1161326064 its reverse (4606231611), we get a palindrome (5767557675).

The spelling of 1161326064 in words is "one billion, one hundred sixty-one million, three hundred twenty-six thousand, sixty-four".