998329735655 has 8 divisors (see below), whose sum is σ = 1369137923232. Its totient is φ = 684568961568.

The previous prime is 998329735631. The next prime is 998329735679. The reversal of 998329735655 is 556537923899.

It is an interprime number because it is at equal distance from previous prime (998329735631) and next prime (998329735679).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 998329735655 - 2¹⁰ = 998329734631 is a prime.

It is a super-3 number, since 3×998329735655³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14261853332 + ... + 14261853401.

It is an arithmetic number, because the mean of its divisors is an integer number (171142240404).

Almost surely, 2^998329735655 is an apocalyptic number.

998329735655 is a deficient number, since it is larger than the sum of its proper divisors (370808187577).

998329735655 is a wasteful number, since it uses less digits than its factorization.

998329735655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28523706745.

The product of its digits is 551124000, while the sum is 71.

The spelling of 998329735655 in words is "nine hundred ninety-eight billion, three hundred twenty-nine million, seven hundred thirty-five thousand, six hundred fifty-five".