11640236331 has 8 divisors (see below), whose sum is σ = 15662703760. Its totient is φ = 7688963232.

The previous prime is 11640236281. The next prime is 11640236339. The reversal of 11640236331 is 13363204611.

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

It is not a de Polignac number, because 11640236331 - 2¹⁴ = 11640219947 is a prime.

It is a super-2 number, since 2×11640236331² (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 (11640236339) 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, 17798200 + ... + 17798853.

It is an arithmetic number, because the mean of its divisors is an integer number (1957837970).

Almost surely, 2^11640236331 is an apocalyptic number.

11640236331 is a deficient number, since it is larger than the sum of its proper divisors (4022467429).

11640236331 is a wasteful number, since it uses less digits than its factorization.

11640236331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35597165.

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

The spelling of 11640236331 in words is "eleven billion, six hundred forty million, two hundred thirty-six thousand, three hundred thirty-one".