2042665335455 has 4 divisors (see below), whose sum is σ = 2451198402552. Its totient is φ = 1634132268360.

The previous prime is 2042665335449. The next prime is 2042665335457. The reversal of 2042665335455 is 5545335662402.

It is a happy number.

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

It is not a de Polignac number, because 2042665335455 - 2⁴ = 2042665335439 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 (2042665335457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204266533541 + ... + 204266533550.

It is an arithmetic number, because the mean of its divisors is an integer number (612799600638).

Almost surely, 2^{2042665335455} is an apocalyptic number.

2042665335455 is a deficient number, since it is larger than the sum of its proper divisors (408533067097).

2042665335455 is an equidigital number, since it uses as much as digits as its factorization.

2042665335455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408533067096.

The product of its (nonzero) digits is 12960000, while the sum is 50.

The spelling of 2042665335455 in words is "two trillion, forty-two billion, six hundred sixty-five million, three hundred thirty-five thousand, four hundred fifty-five".