1665042436342 has 32 divisors (see below), whose sum is σ = 2655023241024. Its totient is φ = 780426316800.

The previous prime is 1665042436339. The next prime is 1665042436367. The reversal of 1665042436342 is 2436342405661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1665042436292 and 1665042436301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60443092 + ... + 60470632.

It is an arithmetic number, because the mean of its divisors is an integer number (82969476282).

Almost surely, 2^{1665042436342} is an apocalyptic number.

1665042436342 is a deficient number, since it is larger than the sum of its proper divisors (989980804682).

1665042436342 is a wasteful number, since it uses less digits than its factorization.

1665042436342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34584.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 1665042436342 in words is "one trillion, six hundred sixty-five billion, forty-two million, four hundred thirty-six thousand, three hundred forty-two".