11667171755 has 8 divisors (see below), whose sum is σ = 14017298400. Its totient is φ = 9322609216.

The previous prime is 11667171721. The next prime is 11667171767. The reversal of 11667171755 is 55717176611.

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 11667171755 - 2¹⁰ = 11667170731 is a prime.

It is a super-2 number, since 2×11667171755² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386410 + ... + 1394799.

It is an arithmetic number, because the mean of its divisors is an integer number (1752162300).

Almost surely, 2^11667171755 is an apocalyptic number.

11667171755 is a deficient number, since it is larger than the sum of its proper divisors (2350126645).

11667171755 is an equidigital number, since it uses as much as digits as its factorization.

11667171755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782053.

The product of its digits is 308700, while the sum is 47.

It can be divided in two parts, 11 and 667171755, that added together give a palindrome (667171766).

The spelling of 11667171755 in words is "eleven billion, six hundred sixty-seven million, one hundred seventy-one thousand, seven hundred fifty-five".