11646520033 has 8 divisors (see below), whose sum is σ = 11871995688. Its totient is φ = 11421256704.

The previous prime is 11646520001. The next prime is 11646520043. The reversal of 11646520033 is 33002564611.

It can be written as a sum of positive squares in 4 ways, for example, as 20720704 + 11625799329 = 4552^2 + 107823^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11646520033 - 2⁵ = 11646520001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11646519977 and 11646520004.

It is not an unprimeable number, because it can be changed into a prime (11646520043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59991 + ... + 163987.

It is an arithmetic number, because the mean of its divisors is an integer number (1483999461).

Almost surely, 2^11646520033 is an apocalyptic number.

It is an amenable number.

11646520033 is a deficient number, since it is larger than the sum of its proper divisors (225475655).

11646520033 is a wasteful number, since it uses less digits than its factorization.

11646520033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106163.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 11646520033 in words is "eleven billion, six hundred forty-six million, five hundred twenty thousand, thirty-three".