198239608061 has 8 divisors (see below), whose sum is σ = 216289471104. Its totient is φ = 180194425120.

The previous prime is 198239608043. The next prime is 198239608111. The reversal of 198239608061 is 160806932891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198239608061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198239607994 and 198239608012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198239608561) 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 7 ways as a sum of consecutive naturals, for example, 1081160 + ... + 1251153.

It is an arithmetic number, because the mean of its divisors is an integer number (27036183888).

Almost surely, 2^198239608061 is an apocalyptic number.

198239608061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

198239608061 is a deficient number, since it is larger than the sum of its proper divisors (18049863043).

198239608061 is a wasteful number, since it uses less digits than its factorization.

198239608061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340051.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 198239608061 in words is "one hundred ninety-eight billion, two hundred thirty-nine million, six hundred eight thousand, sixty-one".