11650440323161 has 8 divisors (see below), whose sum is σ = 11666210393600. Its totient is φ = 11634680887488.

The previous prime is 11650440323147. The next prime is 11650440323267. The reversal of 11650440323161 is 16132304405611.

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 11650440323161 - 2²⁵ = 11650406768729 is a prime.

It is a super-2 number, since 2×11650440323161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11650440323161.

It is not an unprimeable number, because it can be changed into a prime (11650440323101) 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, 464976 + ... + 4849441.

It is an arithmetic number, because the mean of its divisors is an integer number (1458276299200).

Almost surely, 2^{11650440323161} is an apocalyptic number.

It is an amenable number.

11650440323161 is a deficient number, since it is larger than the sum of its proper divisors (15770070439).

11650440323161 is a wasteful number, since it uses less digits than its factorization.

11650440323161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317383.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 11650440323161 its reverse (16132304405611), we get a palindrome (27782744728772).

The spelling of 11650440323161 in words is "eleven trillion, six hundred fifty billion, four hundred forty million, three hundred twenty-three thousand, one hundred sixty-one".