11555872267 has 8 divisors (see below), whose sum is σ = 12059783424. Its totient is φ = 11052084648.

The previous prime is 11555872249. The next prime is 11555872373. The reversal of 11555872267 is 76227855511.

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 11555872267 - 2¹¹ = 11555870219 is a prime.

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 11555872267.

It is not an unprimeable number, because it can be changed into a prime (11555875267) 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, 195738 + ... + 247840.

It is an arithmetic number, because the mean of its divisors is an integer number (1507472928).

Almost surely, 2^11555872267 is an apocalyptic number.

11555872267 is a deficient number, since it is larger than the sum of its proper divisors (503911157).

11555872267 is an equidigital number, since it uses as much as digits as its factorization.

11555872267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61769.

The product of its digits is 1176000, while the sum is 49.

The spelling of 11555872267 in words is "eleven billion, five hundred fifty-five million, eight hundred seventy-two thousand, two hundred sixty-seven".