198330612481 has 4 divisors (see below), whose sum is σ = 200256152512. Its totient is φ = 196405072452.

The previous prime is 198330612413. The next prime is 198330612497. The reversal of 198330612481 is 184216033891.

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, and also an emirpimes, since its reverse is a distinct semiprime: 184216033891 = 6277 ⋅29347783.

It is a cyclic number.

It is not a de Polignac number, because 198330612481 - 2¹¹ = 198330610433 is a prime.

It is a super-2 number, since 2×198330612481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198330612401) 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, 962769861 + ... + 962770066.

It is an arithmetic number, because the mean of its divisors is an integer number (50064038128).

Almost surely, 2^198330612481 is an apocalyptic number.

It is an amenable number.

198330612481 is a deficient number, since it is larger than the sum of its proper divisors (1925540031).

198330612481 is a wasteful number, since it uses less digits than its factorization.

198330612481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925540030.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 198330612481 in words is "one hundred ninety-eight billion, three hundred thirty million, six hundred twelve thousand, four hundred eighty-one".