242135332645646 has 32 divisors (see below), whose sum is σ = 401920536784896. Its totient is φ = 108479350476000.

The previous prime is 242135332645621. The next prime is 242135332645649. The reversal of 242135332645646 is 646546233531242.

It is a junction number, because it is equal to n+sod(n) for n = 242135332645591 and 242135332645600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242135332645649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17560265 + ... + 28153748.

It is an arithmetic number, because the mean of its divisors is an integer number (12560016774528).

Almost surely, 2^{242135332645646} is an apocalyptic number.

242135332645646 is a deficient number, since it is larger than the sum of its proper divisors (159785204139250).

242135332645646 is a wasteful number, since it uses less digits than its factorization.

242135332645646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45717488.

The product of its digits is 74649600, while the sum is 56.

The spelling of 242135332645646 in words is "two hundred forty-two trillion, one hundred thirty-five billion, three hundred thirty-two million, six hundred forty-five thousand, six hundred forty-six".