65056140563542 has 4 divisors (see below), whose sum is σ = 97584210845316. Its totient is φ = 32528070281770.

The previous prime is 65056140563507. The next prime is 65056140563647. The reversal of 65056140563542 is 24536504165056.

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

It is a self number, because there is not a number n which added to its sum of digits gives 65056140563542.

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 as a sum of consecutive naturals, namely, 16264035140884 + ... + 16264035140887.

It is an arithmetic number, because the mean of its divisors is an integer number (24396052711329).

Almost surely, 2^{65056140563542} is an apocalyptic number.

65056140563542 is a deficient number, since it is larger than the sum of its proper divisors (32528070281774).

65056140563542 is a wasteful number, since it uses less digits than its factorization.

65056140563542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32528070281773.

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 65056140563542 in words is "sixty-five trillion, fifty-six billion, one hundred forty million, five hundred sixty-three thousand, five hundred forty-two".