999999951111011 has 16 divisors (see below), whose sum is σ = 1074768739870464. Its totient is φ = 927987709058784.

The previous prime is 999999951110999. The next prime is 999999951111017. The reversal of 999999951111011 is 110111159999999.

It is a de Polignac number, because none of the positive numbers 2^k-999999951111011 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 999999951111011.

It is not an unprimeable number, because it can be changed into a prime (999999951111017) 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, 1692915185 + ... + 1693505778.

It is an arithmetic number, because the mean of its divisors is an integer number (67173046241904).

Almost surely, 2^{999999951111011} is an apocalyptic number.

999999951111011 is a deficient number, since it is larger than the sum of its proper divisors (74768788759453).

999999951111011 is a wasteful number, since it uses less digits than its factorization.

999999951111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386421370.

The product of its (nonzero) digits is 23914845, while the sum is 74.

The spelling of 999999951111011 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred fifty-one million, one hundred eleven thousand, eleven".