11345172218 has 8 divisors (see below), whose sum is σ = 17257445280. Its totient is φ = 5592690460.

The previous prime is 11345172217. The next prime is 11345172227. The reversal of 11345172218 is 81227154311.

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

It is not an unprimeable number, because it can be changed into a prime (11345172217) 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, 39947648 + ... + 39947931.

It is an arithmetic number, because the mean of its divisors is an integer number (2157180660).

Almost surely, 2^11345172218 is an apocalyptic number.

11345172218 is a deficient number, since it is larger than the sum of its proper divisors (5912273062).

11345172218 is an equidigital number, since it uses as much as digits as its factorization.

11345172218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79895652.

The product of its digits is 13440, while the sum is 35.

The spelling of 11345172218 in words is "eleven billion, three hundred forty-five million, one hundred seventy-two thousand, two hundred eighteen".