42516489655 has 16 divisors (see below), whose sum is σ = 52607517984. Its totient is φ = 32962032000.

The previous prime is 42516489647. The next prime is 42516489689. The reversal of 42516489655 is 55698461524.

It is a happy number.

It is not a de Polignac number, because 42516489655 - 2³ = 42516489647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42516489596 and 42516489605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411372 + ... + 504241.

It is an arithmetic number, because the mean of its divisors is an integer number (3287969874).

Almost surely, 2^42516489655 is an apocalyptic number.

42516489655 is a deficient number, since it is larger than the sum of its proper divisors (10091028329).

42516489655 is a wasteful number, since it uses less digits than its factorization.

42516489655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915906.

The product of its digits is 10368000, while the sum is 55.

The spelling of 42516489655 in words is "forty-two billion, five hundred sixteen million, four hundred eighty-nine thousand, six hundred fifty-five".