553998343899355 has 4 divisors (see below), whose sum is σ = 664798012679232. Its totient is φ = 443198675119480.

The previous prime is 553998343899307. The next prime is 553998343899367.

553998343899355 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 553998343899355 - 2¹¹ = 553998343897307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55399834389931 + ... + 55399834389940.

It is an arithmetic number, because the mean of its divisors is an integer number (166199503169808).

Almost surely, 2^{553998343899355} is an apocalyptic number.

553998343899355 is a deficient number, since it is larger than the sum of its proper divisors (110799668779877).

553998343899355 is a wasteful number, since it uses less digits than its factorization.

553998343899355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110799668779876.

The product of its digits is 85030560000, while the sum is 88.

The spelling of 553998343899355 in words is "five hundred fifty-three trillion, nine hundred ninety-eight billion, three hundred forty-three million, eight hundred ninety-nine thousand, three hundred fifty-five".