11515314552205 has 8 divisors (see below), whose sum is σ = 14294873237400. Its totient is φ = 8894587791936.

The previous prime is 11515314552179. The next prime is 11515314552227. The reversal of 11515314552205 is 50225541351511.

It can be written as a sum of positive squares in 4 ways, for example, as 1133121928324 + 10382192623881 = 1064482^2 + 3222141^2 .

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 11515314552205 - 2⁵ = 11515314552173 is a prime.

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, 39707981070 + ... + 39707981359.

It is an arithmetic number, because the mean of its divisors is an integer number (1786859154675).

Almost surely, 2^{11515314552205} is an apocalyptic number.

It is an amenable number.

11515314552205 is a deficient number, since it is larger than the sum of its proper divisors (2779558685195).

11515314552205 is an equidigital number, since it uses as much as digits as its factorization.

11515314552205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79415962463.

The product of its (nonzero) digits is 150000, while the sum is 40.

The spelling of 11515314552205 in words is "eleven trillion, five hundred fifteen billion, three hundred fourteen million, five hundred fifty-two thousand, two hundred five".