11205552145 has 8 divisors (see below), whose sum is σ = 13447353600. Its totient is φ = 8963981040.

The previous prime is 11205552143. The next prime is 11205552181. The reversal of 11205552145 is 54125550211.

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

It is not a de Polignac number, because 11205552145 - 2¹ = 11205552143 is a prime.

It is a super-3 number, since 3×11205552145³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11205552143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78810 + ... + 169180.

It is an arithmetic number, because the mean of its divisors is an integer number (1680919200).

Almost surely, 2^11205552145 is an apocalyptic number.

It is an amenable number.

11205552145 is a deficient number, since it is larger than the sum of its proper divisors (2241801455).

11205552145 is an equidigital number, since it uses as much as digits as its factorization.

11205552145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115175.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 11205552145 in words is "eleven billion, two hundred five million, five hundred fifty-two thousand, one hundred forty-five".