1161333264 has 80 divisors (see below), whose sum is σ = 3692458112. Its totient is φ = 306284544.

The previous prime is 1161333193. The next prime is 1161333269. The reversal of 1161333264 is 4623331611.

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

It is not an unprimeable number, because it can be changed into a prime (1161333269) 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, 128569 + ... + 137304.

Almost surely, 2^1161333264 is an apocalyptic number.

1161333264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1161333264 is an abundant number, since it is smaller than the sum of its proper divisors (2531124848).

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

1161333264 is a wasteful number, since it uses less digits than its factorization.

1161333264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265904 (or 265898 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 1161333264 is about 34078.3401004216. The cubic root of 1161333264 is about 1051.1199732197.

Adding to 1161333264 its reverse (4623331611), we get a palindrome (5784664875).

The spelling of 1161333264 in words is "one billion, one hundred sixty-one million, three hundred thirty-three thousand, two hundred sixty-four".