11143540164 has 12 divisors (see below), whose sum is σ = 26001593744. Its totient is φ = 3714513384.

The previous prime is 11143540159. The next prime is 11143540169. The reversal of 11143540164 is 46104534111.

It is an interprime number because it is at equal distance from previous prime (11143540159) and next prime (11143540169).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11143540164² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11143540169) 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, 464314162 + ... + 464314185.

Almost surely, 2^11143540164 is an apocalyptic number.

It is an amenable number.

11143540164 is an abundant number, since it is smaller than the sum of its proper divisors (14858053580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11143540164 is a wasteful number, since it uses less digits than its factorization.

11143540164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928628354 (or 928628352 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 11143540164 in words is "eleven billion, one hundred forty-three million, five hundred forty thousand, one hundred sixty-four".