11164531517 has 4 divisors (see below), whose sum is σ = 11188645440. Its totient is φ = 11140417596.

The previous prime is 11164531513. The next prime is 11164531531. The reversal of 11164531517 is 71513546111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11164531517 - 2² = 11164531513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11164531513) 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, 12056267 + ... + 12057192.

It is an arithmetic number, because the mean of its divisors is an integer number (2797161360).

Almost surely, 2^11164531517 is an apocalyptic number.

It is an amenable number.

11164531517 is a deficient number, since it is larger than the sum of its proper divisors (24113923).

11164531517 is an equidigital number, since it uses as much as digits as its factorization.

11164531517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24113922.

The product of its digits is 12600, while the sum is 35.

The spelling of 11164531517 in words is "eleven billion, one hundred sixty-four million, five hundred thirty-one thousand, five hundred seventeen".