11663745343 has 4 divisors (see below), whose sum is σ = 11747657320. Its totient is φ = 11579833368.

The previous prime is 11663745337. The next prime is 11663745361. The reversal of 11663745343 is 34354736611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34354736611 = 13 ⋅2642672047.

It is a cyclic number.

It is not a de Polignac number, because 11663745343 - 2⁹ = 11663744831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11663745343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663745323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41955780 + ... + 41956057.

It is an arithmetic number, because the mean of its divisors is an integer number (2936914330).

Almost surely, 2^11663745343 is an apocalyptic number.

11663745343 is a deficient number, since it is larger than the sum of its proper divisors (83911977).

11663745343 is an equidigital number, since it uses as much as digits as its factorization.

11663745343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83911976.

The product of its digits is 544320, while the sum is 43.

The spelling of 11663745343 in words is "eleven billion, six hundred sixty-three million, seven hundred forty-five thousand, three hundred forty-three".