65663142 has 16 divisors (see below), whose sum is σ = 131406192. Its totient is φ = 21874400.

The previous prime is 65663119. The next prime is 65663159. The reversal of 65663142 is 24136656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15892 + ... + 19592.

It is an arithmetic number, because the mean of its divisors is an integer number (8212887).

Almost surely, 2^65663142 is an apocalyptic number.

65663142 is an abundant number, since it is smaller than the sum of its proper divisors (65743050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65663142 is a wasteful number, since it uses less digits than its factorization.

65663142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6663.

The product of its digits is 25920, while the sum is 33.

The square root of 65663142 is about 8103.2797063905. The cubic root of 65663142 is about 403.4352916354.

Adding to 65663142 its reverse (24136656), we get a palindrome (89799798).

The spelling of 65663142 in words is "sixty-five million, six hundred sixty-three thousand, one hundred forty-two".