42421660055 has 8 divisors (see below), whose sum is σ = 50913330192. Its totient is φ = 33932435968.

The previous prime is 42421660051. The next prime is 42421660103. The reversal of 42421660055 is 55006612424.

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 42421660055 - 2² = 42421660051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42421659997 and 42421660024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421660051) 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, 573137 + ... + 642906.

It is an arithmetic number, because the mean of its divisors is an integer number (6364166274).

Almost surely, 2^42421660055 is an apocalyptic number.

42421660055 is a deficient number, since it is larger than the sum of its proper divisors (8491670137).

42421660055 is a wasteful number, since it uses less digits than its factorization.

42421660055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223025.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 42421660055 in words is "forty-two billion, four hundred twenty-one million, six hundred sixty thousand, fifty-five".