11164997760 has 128 divisors (see below), whose sum is σ = 40672540800. Its totient is φ = 2551996416.

The previous prime is 11164997743. The next prime is 11164997761. The reversal of 11164997760 is 6779946111.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (11164997761) 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, 401925 + ... + 428804.

It is an arithmetic number, because the mean of its divisors is an integer number (317754225).

Almost surely, 2^11164997760 is an apocalyptic number.

11164997760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11164997760 is an abundant number, since it is smaller than the sum of its proper divisors (29507543040).

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

11164997760 is an equidigital number, since it uses as much as digits as its factorization.

11164997760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830758 (or 830746 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 11164997760 in words is "eleven billion, one hundred sixty-four million, nine hundred ninety-seven thousand, seven hundred sixty".