642241580355 has 12 divisors (see below), whose sum is σ = 1113218739360. Its totient is φ = 342528842832.

The previous prime is 642241580353. The next prime is 642241580369. The reversal of 642241580355 is 553085142246.

642241580355 is a `hidden beast` number, since 6 + 4 + 2 + 241 + 58 + 0 + 355 = 666.

It is not a de Polignac number, because 642241580355 - 2¹ = 642241580353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14272035119 = 642241580355 / (6 + 4 + 2 + 2 + 4 + 1 + 5 + 8 + 0 + 3 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 642241580355.

It is not an unprimeable number, because it can be changed into a prime (642241580353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7136017515 + ... + 7136017604.

It is an arithmetic number, because the mean of its divisors is an integer number (92768228280).

Almost surely, 2^642241580355 is an apocalyptic number.

642241580355 is a deficient number, since it is larger than the sum of its proper divisors (470977159005).

642241580355 is a wasteful number, since it uses less digits than its factorization.

642241580355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14272035130 (or 14272035127 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 642241580355 in words is "six hundred forty-two billion, two hundred forty-one million, five hundred eighty thousand, three hundred fifty-five".