1665143342 has 8 divisors (see below), whose sum is σ = 2497959432. Its totient is φ = 832490200.

The previous prime is 1665143341. The next prime is 1665143357. The reversal of 1665143342 is 2433415661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665143341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10784 + ... + 58707.

It is an arithmetic number, because the mean of its divisors is an integer number (312244929).

Almost surely, 2^1665143342 is an apocalyptic number.

1665143342 is a deficient number, since it is larger than the sum of its proper divisors (832816090).

1665143342 is a wasteful number, since it uses less digits than its factorization.

1665143342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81474.

The product of its digits is 51840, while the sum is 35.

The square root of 1665143342 is about 40806.1679406435. The cubic root of 1665143342 is about 1185.2697711691.

The spelling of 1665143342 in words is "one billion, six hundred sixty-five million, one hundred forty-three thousand, three hundred forty-two".