242011543216646 has 48 divisors (see below), whose sum is σ = 429455832828480. Its totient is φ = 101958192095760.

The previous prime is 242011543216631. The next prime is 242011543216733. The reversal of 242011543216646 is 646612345110242.

It is a self number, because there is not a number n which added to its sum of digits gives 242011543216646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195572261 + ... + 196805823.

It is an arithmetic number, because the mean of its divisors is an integer number (8946996517260).

Almost surely, 2^{242011543216646} is an apocalyptic number.

242011543216646 is a deficient number, since it is larger than the sum of its proper divisors (187444289611834).

242011543216646 is a wasteful number, since it uses less digits than its factorization.

242011543216646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267569 (or 1267562 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

Adding to 242011543216646 its reverse (646612345110242), we get a palindrome (888623888326888).

The spelling of 242011543216646 in words is "two hundred forty-two trillion, eleven billion, five hundred forty-three million, two hundred sixteen thousand, six hundred forty-six".