994555505055 has 32 divisors (see below), whose sum is σ = 1867767565824. Its totient is φ = 442365998976.

The previous prime is 994555505033. The next prime is 994555505107. The reversal of 994555505055 is 550505555499.

It is not a de Polignac number, because 994555505055 - 2⁸ = 994555504799 is a prime.

It is a super-2 number, since 2×994555505055² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 994555504986 and 994555505004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127995537 + ... + 128003306.

It is an arithmetic number, because the mean of its divisors is an integer number (58367736432).

Almost surely, 2^994555505055 is an apocalyptic number.

994555505055 is a deficient number, since it is larger than the sum of its proper divisors (873212060769).

994555505055 is a wasteful number, since it uses less digits than its factorization.

994555505055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255998895.

The product of its (nonzero) digits is 25312500, while the sum is 57.

The spelling of 994555505055 in words is "nine hundred ninety-four billion, five hundred fifty-five million, five hundred five thousand, fifty-five".