199498797153599 has 4 divisors (see below), whose sum is σ = 199498835445936. Its totient is φ = 199498758861264.

The previous prime is 199498797153587. The next prime is 199498797153611. The reversal of 199498797153599 is 995351797894991.

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 (199498797153587) and next prime (199498797153611).

It is a cyclic number.

It is not a de Polignac number, because 199498797153599 - 2⁴ = 199498797153583 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 (199498797153559) 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, 9815654 + ... + 22256339.

It is an arithmetic number, because the mean of its divisors is an integer number (49874708861484).

Almost surely, 2^{199498797153599} is an apocalyptic number.

199498797153599 is a deficient number, since it is larger than the sum of its proper divisors (38292337).

199498797153599 is an equidigital number, since it uses as much as digits as its factorization.

199498797153599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38292336.

The product of its digits is 62497461600, while the sum is 95.

The spelling of 199498797153599 in words is "one hundred ninety-nine trillion, four hundred ninety-eight billion, seven hundred ninety-seven million, one hundred fifty-three thousand, five hundred ninety-nine".