42340204665 has 24 divisors (see below), whose sum is σ = 80061478848. Its totient is φ = 20528583840.

The previous prime is 42340204657. The next prime is 42340204703. The reversal of 42340204665 is 56640204324.

42340204665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42340204665 - 2³ = 42340204657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42767389 + ... + 42768378.

It is an arithmetic number, because the mean of its divisors is an integer number (3335894952).

Almost surely, 2^42340204665 is an apocalyptic number.

42340204665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42340204665 is a deficient number, since it is larger than the sum of its proper divisors (37721274183).

42340204665 is a wasteful number, since it uses less digits than its factorization.

42340204665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85535789 (or 85535786 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 42340204665 its reverse (56640204324), we get a palindrome (98980408989).

The spelling of 42340204665 in words is "forty-two billion, three hundred forty million, two hundred four thousand, six hundred sixty-five".