242040205161 has 24 divisors (see below), whose sum is σ = 362821950400. Its totient is φ = 161244570672.

The previous prime is 242040205109. The next prime is 242040205171. The reversal of 242040205161 is 161502040242.

242040205161 is a `hidden beast` number, since 242 + 0 + 402 + 0 + 5 + 16 + 1 = 666.

It is not a de Polignac number, because 242040205161 - 2¹¹ = 242040203113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242040205171) 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, 16030 + ... + 695943.

Almost surely, 2^242040205161 is an apocalyptic number.

It is an amenable number.

242040205161 is a deficient number, since it is larger than the sum of its proper divisors (120781745239).

242040205161 is an equidigital number, since it uses as much as digits as its factorization.

242040205161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713387 (or 713375 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 242040205161 in words is "two hundred forty-two billion, forty million, two hundred five thousand, one hundred sixty-one".