999940000011501 has 16 divisors (see below), whose sum is σ = 1393446427329600. Its totient is φ = 637004081054208.

The previous prime is 999940000011481. The next prime is 999940000011527. The reversal of 999940000011501 is 105110000049999.

It is a happy number.

It is not a de Polignac number, because 999940000011501 - 2¹⁸ = 999939999749357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999940000012501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59245162791 + ... + 59245179668.

It is an arithmetic number, because the mean of its divisors is an integer number (87090401708100).

Almost surely, 2^{999940000011501} is an apocalyptic number.

It is an amenable number.

999940000011501 is a deficient number, since it is larger than the sum of its proper divisors (393506427318099).

999940000011501 is a wasteful number, since it uses less digits than its factorization.

999940000011501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118490342588.

The product of its (nonzero) digits is 131220, while the sum is 48.

The spelling of 999940000011501 in words is "nine hundred ninety-nine trillion, nine hundred forty billion, eleven thousand, five hundred one".