9994981082255 has 32 divisors (see below), whose sum is σ = 13002070233600. Its totient is φ = 7375768248576.

The previous prime is 9994981082221. The next prime is 9994981082341. The reversal of 9994981082255 is 5522801894999.

It is a Cunningham number, because it is equal to 3161484²-1.

It is not a de Polignac number, because 9994981082255 - 2¹⁴ = 9994981065871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15491267 + ... + 16123563.

It is an arithmetic number, because the mean of its divisors is an integer number (406314694800).

Almost surely, 2^{9994981082255} is an apocalyptic number.

9994981082255 is a deficient number, since it is larger than the sum of its proper divisors (3007089151345).

9994981082255 is a wasteful number, since it uses less digits than its factorization.

9994981082255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633780 (or 633754 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 71.

The spelling of 9994981082255 in words is "nine trillion, nine hundred ninety-four billion, nine hundred eighty-one million, eighty-two thousand, two hundred fifty-five".