655542198 has 12 divisors (see below), whose sum is σ = 1420341468. Its totient is φ = 218514060.

The previous prime is 655542197. The next prime is 655542203. The reversal of 655542198 is 891245556.

655542198 is a `hidden beast` number, since 6 + 5 + 554 + 2 + 1 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655542191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18209488 + ... + 18209523.

It is an arithmetic number, because the mean of its divisors is an integer number (118361789).

Almost surely, 2^655542198 is an apocalyptic number.

655542198 is an abundant number, since it is smaller than the sum of its proper divisors (764799270).

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

655542198 is a wasteful number, since it uses less digits than its factorization.

655542198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36419019 (or 36419016 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 655542198 is about 25603.5583073916. The cubic root of 655542198 is about 868.6941248814.

The spelling of 655542198 in words is "six hundred fifty-five million, five hundred forty-two thousand, one hundred ninety-eight".