11203666745 has 4 divisors (see below), whose sum is σ = 13444400100. Its totient is φ = 8962933392.

The previous prime is 11203666739. The next prime is 11203666829. The reversal of 11203666745 is 54766630211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7708137616 + 3495529129 = 87796^2 + 59123^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203666745 - 2¹² = 11203662649 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120366670 + ... + 1120366679.

It is an arithmetic number, because the mean of its divisors is an integer number (3361100025).

Almost surely, 2^11203666745 is an apocalyptic number.

It is an amenable number.

11203666745 is a deficient number, since it is larger than the sum of its proper divisors (2240733355).

11203666745 is an equidigital number, since it uses as much as digits as its factorization.

11203666745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240733354.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 11203666745 in words is "eleven billion, two hundred three million, six hundred sixty-six thousand, seven hundred forty-five".