9816196111905 has 16 divisors (see below), whose sum is σ = 15895141657920. Its totient is φ = 5172228633408.

The previous prime is 9816196111889. The next prime is 9816196111927. The reversal of 9816196111905 is 5091116916189.

It is a happy number.

It is not a de Polignac number, because 9816196111905 - 2⁴ = 9816196111889 is a prime.

It is a super-2 number, since 2×9816196111905² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3942246190 + ... + 3942248679.

It is an arithmetic number, because the mean of its divisors is an integer number (993446353620).

Almost surely, 2^{9816196111905} is an apocalyptic number.

It is an amenable number.

9816196111905 is a deficient number, since it is larger than the sum of its proper divisors (6078945546015).

9816196111905 is a wasteful number, since it uses less digits than its factorization.

9816196111905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884494960.

The product of its (nonzero) digits is 1049760, while the sum is 57.

The spelling of 9816196111905 in words is "nine trillion, eight hundred sixteen billion, one hundred ninety-six million, one hundred eleven thousand, nine hundred five".