1161366312 has 64 divisors (see below), whose sum is σ = 2992844160. Its totient is φ = 375379200.

The previous prime is 1161366259. The next prime is 1161366313. The reversal of 1161366312 is 2136631611.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1161366312.

It is not an unprimeable number, because it can be changed into a prime (1161366313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98358 + ... + 109530.

It is an arithmetic number, because the mean of its divisors is an integer number (46763190).

Almost surely, 2^1161366312 is an apocalyptic number.

1161366312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161366312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496422080).

1161366312 is an abundant number, since it is smaller than the sum of its proper divisors (1831477848).

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

1161366312 is a wasteful number, since it uses less digits than its factorization.

1161366312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11314 (or 11310 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 1161366312 is about 34078.8249797437. The cubic root of 1161366312 is about 1051.1299436805.

Adding to 1161366312 its reverse (2136631611), we get a palindrome (3297997923).

The spelling of 1161366312 in words is "one billion, one hundred sixty-one million, three hundred sixty-six thousand, three hundred twelve".