42054410661 has 8 divisors (see below), whose sum is σ = 56165848704. Its totient is φ = 27989623200.

The previous prime is 42054410611. The next prime is 42054410711. The reversal of 42054410661 is 16601445024.

It is an interprime number because it is at equal distance from previous prime (42054410611) and next prime (42054410711).

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

It is not a de Polignac number, because 42054410661 - 2⁷ = 42054410533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054410611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11660541 + ... + 11664146.

It is an arithmetic number, because the mean of its divisors is an integer number (7020731088).

Almost surely, 2^42054410661 is an apocalyptic number.

It is an amenable number.

42054410661 is a deficient number, since it is larger than the sum of its proper divisors (14111438043).

42054410661 is a wasteful number, since it uses less digits than its factorization.

42054410661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23325291.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 42054410661 its reverse (16601445024), we get a palindrome (58655855685).

The spelling of 42054410661 in words is "forty-two billion, fifty-four million, four hundred ten thousand, six hundred sixty-one".