242158335657 has 16 divisors (see below), whose sum is σ = 369023736192. Its totient is φ = 138368482560.

The previous prime is 242158335619. The next prime is 242158335667. The reversal of 242158335657 is 756533851242.

242158335657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242158335657 - 2¹¹ = 242158333609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242158335667) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 76123 + ... + 700079.

It is an arithmetic number, because the mean of its divisors is an integer number (23063983512).

Almost surely, 2^242158335657 is an apocalyptic number.

It is an amenable number.

242158335657 is a deficient number, since it is larger than the sum of its proper divisors (126865400535).

242158335657 is a wasteful number, since it uses less digits than its factorization.

242158335657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642448.

The product of its digits is 6048000, while the sum is 51.

The spelling of 242158335657 in words is "two hundred forty-two billion, one hundred fifty-eight million, three hundred thirty-five thousand, six hundred fifty-seven".