11672545165 has 16 divisors (see below), whose sum is σ = 14471009280. Its totient is φ = 9029237760.

The previous prime is 11672545147. The next prime is 11672545189. The reversal of 11672545165 is 56154527611.

It is a happy number.

It is not a de Polignac number, because 11672545165 - 2¹¹ = 11672543117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157696 + ... + 219574.

It is an arithmetic number, because the mean of its divisors is an integer number (904438080).

Almost surely, 2^11672545165 is an apocalyptic number.

It is an amenable number.

11672545165 is a deficient number, since it is larger than the sum of its proper divisors (2798464115).

11672545165 is a wasteful number, since it uses less digits than its factorization.

11672545165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63132.

The product of its digits is 252000, while the sum is 43.

The spelling of 11672545165 in words is "eleven billion, six hundred seventy-two million, five hundred forty-five thousand, one hundred sixty-five".