994955559499 has 24 divisors (see below), whose sum is σ = 1130788131200. Its totient is φ = 873869040000.

The previous prime is 994955559427. The next prime is 994955559511.

994955559499 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 994955559499 - 2⁷ = 994955559371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994955550499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2033677 + ... + 2475025.

Almost surely, 2^994955559499 is an apocalyptic number.

994955559499 is a deficient number, since it is larger than the sum of its proper divisors (135832571701).

994955559499 is a wasteful number, since it uses less digits than its factorization.

994955559499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442003 (or 441992 counting only the distinct ones).

The product of its digits is 5314410000, while the sum is 82.

The spelling of 994955559499 in words is "nine hundred ninety-four billion, nine hundred fifty-five million, five hundred fifty-nine thousand, four hundred ninety-nine".