198085620970 has 8 divisors (see below), whose sum is σ = 356554117764. Its totient is φ = 79234248384.

The previous prime is 198085620959. The next prime is 198085620977. The reversal of 198085620970 is 79026580891.

It can be written as a sum of positive squares in 2 ways, for example, as 192072704121 + 6012916849 = 438261^2 + 77543^2 .

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

It is not an unprimeable number, because it can be changed into a prime (198085620977) 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, 9904281039 + ... + 9904281058.

Almost surely, 2^198085620970 is an apocalyptic number.

198085620970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198085620970 is a deficient number, since it is larger than the sum of its proper divisors (158468496794).

198085620970 is a wasteful number, since it uses less digits than its factorization.

198085620970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19808562104.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 198085620970 in words is "one hundred ninety-eight billion, eighty-five million, six hundred twenty thousand, nine hundred seventy".