11666259311 has 8 divisors (see below), whose sum is σ = 13333526304. Its totient is φ = 9999156960.

The previous prime is 11666259289. The next prime is 11666259313. The reversal of 11666259311 is 11395266611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11666259311 is a prime.

It is a super-2 number, since 2×11666259311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666259313) 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, 228341 + ... + 274721.

It is an arithmetic number, because the mean of its divisors is an integer number (1666690788).

Almost surely, 2^11666259311 is an apocalyptic number.

11666259311 is a deficient number, since it is larger than the sum of its proper divisors (1667266993).

11666259311 is an equidigital number, since it uses as much as digits as its factorization.

11666259311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82321.

The product of its digits is 58320, while the sum is 41.

The spelling of 11666259311 in words is "eleven billion, six hundred sixty-six million, two hundred fifty-nine thousand, three hundred eleven".