142542063665 has 4 divisors (see below), whose sum is σ = 171050476404. Its totient is φ = 114033650928.

The previous prime is 142542063619. The next prime is 142542063683. The reversal of 142542063665 is 566360245241.

It is a happy number.

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 108809598769 + 33732464896 = 329863^2 + 183664^2 .

It is a cyclic number.

It is not a de Polignac number, because 142542063665 - 2⁸ = 142542063409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14254206362 + ... + 14254206371.

It is an arithmetic number, because the mean of its divisors is an integer number (42762619101).

Almost surely, 2^142542063665 is an apocalyptic number.

It is an amenable number.

142542063665 is a deficient number, since it is larger than the sum of its proper divisors (28508412739).

142542063665 is an equidigital number, since it uses as much as digits as its factorization.

142542063665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28508412738.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 142542063665 in words is "one hundred forty-two billion, five hundred forty-two million, sixty-three thousand, six hundred sixty-five".