42655641505 has 8 divisors (see below), whose sum is σ = 51412263552. Its totient is φ = 33974184048.

The previous prime is 42655641499. The next prime is 42655641521. The reversal of 42655641505 is 50514655624.

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 42655641505 - 2⁵ = 42655641473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18789897 + ... + 18792166.

It is an arithmetic number, because the mean of its divisors is an integer number (6426532944).

Almost surely, 2^42655641505 is an apocalyptic number.

It is an amenable number.

42655641505 is a deficient number, since it is larger than the sum of its proper divisors (8756622047).

42655641505 is a wasteful number, since it uses less digits than its factorization.

42655641505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37582295.

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 42655641505 in words is "forty-two billion, six hundred fifty-five million, six hundred forty-one thousand, five hundred five".