9916013945 has 8 divisors (see below), whose sum is σ = 12008384520. Its totient is φ = 7860032640.

The previous prime is 9916013903. The next prime is 9916013957. The reversal of 9916013945 is 5493106199.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3134656144 + 6781357801 = 55988^2 + 82349^2 .

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

It is not a de Polignac number, because 9916013945 - 2⁸ = 9916013689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9916013945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9096716 + ... + 9097805.

It is an arithmetic number, because the mean of its divisors is an integer number (1501048065).

Almost surely, 2^9916013945 is an apocalyptic number.

It is an amenable number.

9916013945 is a deficient number, since it is larger than the sum of its proper divisors (2092370575).

9916013945 is a wasteful number, since it uses less digits than its factorization.

9916013945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18194635.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 9916013945 is about 99579.1842957151. The cubic root of 9916013945 is about 2148.3863099644.

The spelling of 9916013945 in words is "nine billion, nine hundred sixteen million, thirteen thousand, nine hundred forty-five".