242040660642 has 48 divisors (see below), whose sum is σ = 572139603360. Its totient is φ = 73340078400.

The previous prime is 242040660613. The next prime is 242040660647. The reversal of 242040660642 is 246066040242.

242040660642 is a `hidden beast` number, since 2 + 4 + 2 + 0 + 4 + 0 + 6 + 6 + 0 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 242040660597 and 242040660606.

It is not an unprimeable number, because it can be changed into a prime (242040660647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3101542 + ... + 3178622.

It is an arithmetic number, because the mean of its divisors is an integer number (11919575070).

Almost surely, 2^242040660642 is an apocalyptic number.

242040660642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242040660642 is an abundant number, since it is smaller than the sum of its proper divisors (330098942718).

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

242040660642 is a wasteful number, since it uses less digits than its factorization.

242040660642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92959 (or 92956 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 242040660642 in words is "two hundred forty-two billion, forty million, six hundred sixty thousand, six hundred forty-two".