655542321242 has 8 divisors (see below), whose sum is σ = 1026066242016. Its totient is φ = 313520240572.

The previous prime is 655542321233. The next prime is 655542321257. The reversal of 655542321242 is 242123245556.

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

It is a self number, because there is not a number n which added to its sum of digits gives 655542321242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7125459968 + ... + 7125460059.

It is an arithmetic number, because the mean of its divisors is an integer number (128258280252).

Almost surely, 2^655542321242 is an apocalyptic number.

655542321242 is a deficient number, since it is larger than the sum of its proper divisors (370523920774).

655542321242 is a wasteful number, since it uses less digits than its factorization.

655542321242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14250920052.

The product of its digits is 576000, while the sum is 41.

Adding to 655542321242 its reverse (242123245556), we get a palindrome (897665566798).

The spelling of 655542321242 in words is "six hundred fifty-five billion, five hundred forty-two million, three hundred twenty-one thousand, two hundred forty-two".