199758898559 has 4 divisors (see below), whose sum is σ = 217918798440. Its totient is φ = 181598998680.

The previous prime is 199758898529. The next prime is 199758898589. The reversal of 199758898559 is 955898857991.

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

It is an interprime number because it is at equal distance from previous prime (199758898529) and next prime (199758898589).

It is not a de Polignac number, because 199758898559 - 2²⁰ = 199757849983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199758898529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9079949924 + ... + 9079949945.

It is an arithmetic number, because the mean of its divisors is an integer number (54479699610).

Almost surely, 2^199758898559 is an apocalyptic number.

199758898559 is a deficient number, since it is larger than the sum of its proper divisors (18159899881).

199758898559 is a wasteful number, since it uses less digits than its factorization.

199758898559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18159899880.

The product of its digits is 2939328000, while the sum is 83.

The spelling of 199758898559 in words is "one hundred ninety-nine billion, seven hundred fifty-eight million, eight hundred ninety-eight thousand, five hundred fifty-nine".