198237451180 has 24 divisors (see below), whose sum is σ = 440786803968. Its totient is φ = 74630569728.

The previous prime is 198237451177. The next prime is 198237451189. The reversal of 198237451180 is 81154732891.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (198237451189) 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, 291525324 + ... + 291526003.

It is an arithmetic number, because the mean of its divisors is an integer number (18366116832).

Almost surely, 2^198237451180 is an apocalyptic number.

198237451180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198237451180 is an abundant number, since it is smaller than the sum of its proper divisors (242549352788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198237451180 is a wasteful number, since it uses less digits than its factorization.

198237451180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583051353 (or 583051351 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 198237451180 in words is "one hundred ninety-eight billion, two hundred thirty-seven million, four hundred fifty-one thousand, one hundred eighty".