11640675511 has 16 divisors (see below), whose sum is σ = 11962144800. Its totient is φ = 11323278720.

The previous prime is 11640675467. The next prime is 11640675547. The reversal of 11640675511 is 11557604611.

It is a cyclic number.

It is not a de Polignac number, because 11640675511 - 2¹⁵ = 11640642743 is a prime.

It is a super-2 number, since 2×11640675511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11640675551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5787496 + ... + 5789506.

It is an arithmetic number, because the mean of its divisors is an integer number (747634050).

Almost surely, 2^11640675511 is an apocalyptic number.

11640675511 is a deficient number, since it is larger than the sum of its proper divisors (321469289).

11640675511 is a wasteful number, since it uses less digits than its factorization.

11640675511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 11640675511 in words is "eleven billion, six hundred forty million, six hundred seventy-five thousand, five hundred eleven".