11660321411 has 4 divisors (see below), whose sum is σ = 11660544000. Its totient is φ = 11660098824.

The previous prime is 11660321381. The next prime is 11660321419. The reversal of 11660321411 is 11412306611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11412306611 = 38971 ⋅292841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11660321411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11660321419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15230 + ... + 153468.

It is an arithmetic number, because the mean of its divisors is an integer number (2915136000).

Almost surely, 2^11660321411 is an apocalyptic number.

11660321411 is a deficient number, since it is larger than the sum of its proper divisors (222589).

11660321411 is an equidigital number, since it uses as much as digits as its factorization.

11660321411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222588.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 11660321411 in words is "eleven billion, six hundred sixty million, three hundred twenty-one thousand, four hundred eleven".