255544120198 has 16 divisors (see below), whose sum is σ = 384948735120. Its totient is φ = 127228388256.

The previous prime is 255544120187. The next prime is 255544120199. The reversal of 255544120198 is 891021445552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255544120199) 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, 877240 + ... + 1131652.

It is an arithmetic number, because the mean of its divisors is an integer number (24059295945).

Almost surely, 2^255544120198 is an apocalyptic number.

255544120198 is a deficient number, since it is larger than the sum of its proper divisors (129404614922).

255544120198 is a wasteful number, since it uses less digits than its factorization.

255544120198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256551.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 255544120198 in words is "two hundred fifty-five billion, five hundred forty-four million, one hundred twenty thousand, one hundred ninety-eight".