66563150711 has 4 divisors (see below), whose sum is σ = 68858431800. Its totient is φ = 64267869624.

The previous prime is 66563150539. The next prime is 66563150767. The reversal of 66563150711 is 11705136566.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66563150711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66563150011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147640501 + ... + 1147640558.

It is an arithmetic number, because the mean of its divisors is an integer number (17214607950).

Almost surely, 2^66563150711 is an apocalyptic number.

66563150711 is a deficient number, since it is larger than the sum of its proper divisors (2295281089).

66563150711 is a wasteful number, since it uses less digits than its factorization.

66563150711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295281088.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 66563150711 in words is "sixty-six billion, five hundred sixty-three million, one hundred fifty thousand, seven hundred eleven".