198000422651 has 8 divisors (see below), whose sum is σ = 200080982640. Its totient is φ = 195924663648.

The previous prime is 198000422629. The next prime is 198000422657. The reversal of 198000422651 is 156224000891.

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

It is a cyclic number.

It is not a de Polignac number, because 198000422651 - 2¹⁰ = 198000421627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198000422657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117301 + ... + 1282326.

It is an arithmetic number, because the mean of its divisors is an integer number (25010122830).

Almost surely, 2^198000422651 is an apocalyptic number.

198000422651 is a deficient number, since it is larger than the sum of its proper divisors (2080559989).

198000422651 is a wasteful number, since it uses less digits than its factorization.

198000422651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400493.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 198000422651 in words is "one hundred ninety-eight billion, four hundred twenty-two thousand, six hundred fifty-one".