11505405053215 has 8 divisors (see below), whose sum is σ = 13843500774048. Its totient is φ = 9179647569120.

The previous prime is 11505405053203. The next prime is 11505405053269. The reversal of 11505405053215 is 51235050450511.

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

It is not a de Polignac number, because 11505405053215 - 2¹³ = 11505405045023 is a prime.

It is a Duffinian number.

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, 3084557131 + ... + 3084560860.

It is an arithmetic number, because the mean of its divisors is an integer number (1730437596756).

Almost surely, 2^{11505405053215} is an apocalyptic number.

11505405053215 is a deficient number, since it is larger than the sum of its proper divisors (2338095720833).

11505405053215 is an equidigital number, since it uses as much as digits as its factorization.

11505405053215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169118369.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 11505405053215 in words is "eleven trillion, five hundred five billion, four hundred five million, fifty-three thousand, two hundred fifteen".