11663330331 has 8 divisors (see below), whose sum is σ = 15551624704. Its totient is φ = 7775294760.

The previous prime is 11663330323. The next prime is 11663330381. The reversal of 11663330331 is 13303336611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11663330331 - 2³ = 11663330323 is a prime.

It is a super-2 number, since 2×11663330331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11663330381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101310 + ... + 183276.

It is an arithmetic number, because the mean of its divisors is an integer number (1943953088).

Almost surely, 2^11663330331 is an apocalyptic number.

11663330331 is a deficient number, since it is larger than the sum of its proper divisors (3888294373).

11663330331 is an equidigital number, since it uses as much as digits as its factorization.

11663330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129401.

The product of its (nonzero) digits is 8748, while the sum is 30.

Adding to 11663330331 its reverse (13303336611), we get a palindrome (24966666942).

The spelling of 11663330331 in words is "eleven billion, six hundred sixty-three million, three hundred thirty thousand, three hundred thirty-one".