11572205205 has 32 divisors (see below), whose sum is σ = 20251607040. Its totient is φ = 5596086080.

The previous prime is 11572205147. The next prime is 11572205213. The reversal of 11572205205 is 50250227511.

11572205205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11572205205 - 2²⁸ = 11303769749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28365 + ... + 154754.

It is an arithmetic number, because the mean of its divisors is an integer number (632862720).

Almost surely, 2^11572205205 is an apocalyptic number.

11572205205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11572205205 is a deficient number, since it is larger than the sum of its proper divisors (8679401835).

11572205205 is a wasteful number, since it uses less digits than its factorization.

11572205205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183521.

The product of its (nonzero) digits is 7000, while the sum is 30.

The spelling of 11572205205 in words is "eleven billion, five hundred seventy-two million, two hundred five thousand, two hundred five".