242604561664 has 36 divisors (see below), whose sum is σ = 488787312384. Its totient is φ = 120168601088.

The previous prime is 242604561643. The next prime is 242604561691. The reversal of 242604561664 is 466165406242.

It is a happy number.

It is a congruent number.

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, 4400992 + ... + 4455775.

It is an arithmetic number, because the mean of its divisors is an integer number (13577425344).

Almost surely, 2^242604561664 is an apocalyptic number.

It is an amenable number.

242604561664 is an abundant number, since it is smaller than the sum of its proper divisors (246182750720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242604561664 is an equidigital number, since it uses as much as digits as its factorization.

242604561664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856890 (or 8856876 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 242604561664 in words is "two hundred forty-two billion, six hundred four million, five hundred sixty-one thousand, six hundred sixty-four".