198145046386 has 16 divisors (see below), whose sum is σ = 342270181440. Its totient is φ = 84271065840.

The previous prime is 198145046381. The next prime is 198145046417. The reversal of 198145046386 is 683640541891.

It is a super-3 number, since 3×198145046386³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (198145046381) 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, 54018081 + ... + 54021748.

It is an arithmetic number, because the mean of its divisors is an integer number (21391886340).

Almost surely, 2^198145046386 is an apocalyptic number.

198145046386 is a deficient number, since it is larger than the sum of its proper divisors (144125135054).

198145046386 is a wasteful number, since it uses less digits than its factorization.

198145046386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108039969.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 198145046386 in words is "one hundred ninety-eight billion, one hundred forty-five million, forty-six thousand, three hundred eighty-six".