42246455165 has 4 divisors (see below), whose sum is σ = 50695746204. Its totient is φ = 33797164128.

The previous prime is 42246455161. The next prime is 42246455189. The reversal of 42246455165 is 56155464224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9538647556 + 32707807609 = 97666^2 + 180853^2 .

It is a cyclic number.

It is not a de Polignac number, because 42246455165 - 2² = 42246455161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42246455161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4224645512 + ... + 4224645521.

It is an arithmetic number, because the mean of its divisors is an integer number (12673936551).

Almost surely, 2^42246455165 is an apocalyptic number.

It is an amenable number.

42246455165 is a deficient number, since it is larger than the sum of its proper divisors (8449291039).

42246455165 is an equidigital number, since it uses as much as digits as its factorization.

42246455165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8449291038.

The product of its digits is 1152000, while the sum is 44.

The spelling of 42246455165 in words is "forty-two billion, two hundred forty-six million, four hundred fifty-five thousand, one hundred sixty-five".