999994005055 has 16 divisors (see below), whose sum is σ = 1211288320800. Its totient is φ = 792465857152.

The previous prime is 999994005007. The next prime is 999994005119. The reversal of 999994005055 is 550500499999.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 999994005055 - 2¹¹ = 999994003007 is a prime.

It is a congruent number.

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, 9296721 + ... + 9403669.

It is an arithmetic number, because the mean of its divisors is an integer number (75705520050).

Almost surely, 2^999994005055 is an apocalyptic number.

999994005055 is a deficient number, since it is larger than the sum of its proper divisors (211294315745).

999994005055 is a wasteful number, since it uses less digits than its factorization.

999994005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124538.

The product of its (nonzero) digits is 29524500, while the sum is 64.

The spelling of 999994005055 in words is "nine hundred ninety-nine billion, nine hundred ninety-four million, five thousand, fifty-five".