11520716172215 has 8 divisors (see below), whose sum is σ = 14031200592240. Its totient is φ = 9079012147392.

The previous prime is 11520716172179. The next prime is 11520716172221. The reversal of 11520716172215 is 51227161702511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11520716172215 - 2¹⁸ = 11520715910071 is a prime.

It is a super-2 number, since 2×11520716172215² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17195098430 + ... + 17195099099.

It is an arithmetic number, because the mean of its divisors is an integer number (1753900074030).

Almost surely, 2^{11520716172215} is an apocalyptic number.

11520716172215 is a deficient number, since it is larger than the sum of its proper divisors (2510484420025).

11520716172215 is an equidigital number, since it uses as much as digits as its factorization.

11520716172215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34390197601.

The product of its (nonzero) digits is 58800, while the sum is 41.

Adding to 11520716172215 its reverse (51227161702511), we get a palindrome (62747877874726).

The spelling of 11520716172215 in words is "eleven trillion, five hundred twenty billion, seven hundred sixteen million, one hundred seventy-two thousand, two hundred fifteen".