42241365661 has 8 divisors (see below), whose sum is σ = 46187918784. Its totient is φ = 38312550720.

The previous prime is 42241365659. The next prime is 42241365701. The reversal of 42241365661 is 16656314224.

42241365661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42241365661 - 2¹ = 42241365659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42241360661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4429561 + ... + 4439086.

It is an arithmetic number, because the mean of its divisors is an integer number (5773489848).

Almost surely, 2^42241365661 is an apocalyptic number.

It is an amenable number.

42241365661 is a deficient number, since it is larger than the sum of its proper divisors (3946553123).

42241365661 is a wasteful number, since it uses less digits than its factorization.

42241365661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869091.

The product of its digits is 207360, while the sum is 40.

Adding to 42241365661 its reverse (16656314224), we get a palindrome (58897679885).

The spelling of 42241365661 in words is "forty-two billion, two hundred forty-one million, three hundred sixty-five thousand, six hundred sixty-one".