11638001169 has 24 divisors (see below), whose sum is σ = 16942528512. Its totient is φ = 7697907360.

The previous prime is 11638001161. The next prime is 11638001189. The reversal of 11638001169 is 96110083611.

It is a happy number.

11638001169 is a `hidden beast` number, since 1 + 1 + 638 + 0 + 0 + 1 + 16 + 9 = 666.

It is not a de Polignac number, because 11638001169 - 2³ = 11638001161 is a prime.

It is a super-2 number, since 2×11638001169² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11638001161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713584 + ... + 729710.

It is an arithmetic number, because the mean of its divisors is an integer number (705938688).

Almost surely, 2^11638001169 is an apocalyptic number.

It is an amenable number.

11638001169 is a deficient number, since it is larger than the sum of its proper divisors (5304527343).

11638001169 is a wasteful number, since it uses less digits than its factorization.

11638001169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16757 (or 16754 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 11638001169 in words is "eleven billion, six hundred thirty-eight million, one thousand, one hundred sixty-nine".