242640066036 has 12 divisors (see below), whose sum is σ = 566160154112. Its totient is φ = 80880022008.

The previous prime is 242640066017. The next prime is 242640066043. The reversal of 242640066036 is 630660046242.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 242640065985 and 242640066003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10110002740 + ... + 10110002763.

Almost surely, 2^242640066036 is an apocalyptic number.

It is an amenable number.

242640066036 is an abundant number, since it is smaller than the sum of its proper divisors (323520088076).

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

242640066036 is a wasteful number, since it uses less digits than its factorization.

242640066036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220005510 (or 20220005508 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 242640066036 in words is "two hundred forty-two billion, six hundred forty million, sixty-six thousand, thirty-six".