9916666957259 has 16 divisors (see below), whose sum is σ = 10615500982080. Its totient is φ = 9230867481600.

The previous prime is 9916666957237. The next prime is 9916666957279. The reversal of 9916666957259 is 9527596666199.

9916666957259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9916666957259 - 2¹² = 9916666953163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9916666957279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564394 + ... + 4720239.

It is an arithmetic number, because the mean of its divisors is an integer number (663468811380).

Almost surely, 2^{9916666957259} is an apocalyptic number.

9916666957259 is a deficient number, since it is larger than the sum of its proper divisors (698834024821).

9916666957259 is a wasteful number, since it uses less digits than its factorization.

9916666957259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285670.

The product of its digits is 2976069600, while the sum is 80.

The spelling of 9916666957259 in words is "nine trillion, nine hundred sixteen billion, six hundred sixty-six million, nine hundred fifty-seven thousand, two hundred fifty-nine".