355198891553 has 4 divisors (see below), whose sum is σ = 387489699888. Its totient is φ = 322908083220.

The previous prime is 355198891549. The next prime is 355198891631.

355198891553 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 355198891553 - 2² = 355198891549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355198891513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16145404151 + ... + 16145404172.

It is an arithmetic number, because the mean of its divisors is an integer number (96872424972).

Almost surely, 2^355198891553 is an apocalyptic number.

It is an amenable number.

355198891553 is a deficient number, since it is larger than the sum of its proper divisors (32290808335).

355198891553 is a wasteful number, since it uses less digits than its factorization.

355198891553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32290808334.

The product of its digits is 29160000, while the sum is 62.

The spelling of 355198891553 in words is "three hundred fifty-five billion, one hundred ninety-eight million, eight hundred ninety-one thousand, five hundred fifty-three".