11716353945 has 80 divisors (see below), whose sum is σ = 21932285760. Its totient is φ = 5976222336.

The previous prime is 11716353941. The next prime is 11716353977. The reversal of 11716353945 is 54935361711.

11716353945 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 635 + 3 + 9 + 4 + 5 = 666.

It is not a de Polignac number, because 11716353945 - 2² = 11716353941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11716353945.

It is not an unprimeable number, because it can be changed into a prime (11716353941) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1252054 + ... + 1261376.

It is an arithmetic number, because the mean of its divisors is an integer number (274153572).

Almost surely, 2^11716353945 is an apocalyptic number.

11716353945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11716353945 is a deficient number, since it is larger than the sum of its proper divisors (10215931815).

11716353945 is a wasteful number, since it uses less digits than its factorization.

11716353945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476 (or 9467 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The spelling of 11716353945 in words is "eleven billion, seven hundred sixteen million, three hundred fifty-three thousand, nine hundred forty-five".