11164161664 has 64 divisors (see below), whose sum is σ = 24788937600. Its totient is φ = 4977192960.

The previous prime is 11164161643. The next prime is 11164161667. The reversal of 11164161664 is 46616146111.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (11164161667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93672 + ... + 176359.

It is an arithmetic number, because the mean of its divisors is an integer number (387327150).

Almost surely, 2^11164161664 is an apocalyptic number.

It is an amenable number.

11164161664 is an abundant number, since it is smaller than the sum of its proper divisors (13624775936).

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

11164161664 is a wasteful number, since it uses less digits than its factorization.

11164161664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270081 (or 270069 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The spelling of 11164161664 in words is "eleven billion, one hundred sixty-four million, one hundred sixty-one thousand, six hundred sixty-four".