660000566101 has 4 divisors (see below), whose sum is σ = 688696242912. Its totient is φ = 631304889292.

The previous prime is 660000566063. The next prime is 660000566111. The reversal of 660000566101 is 101665000066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 660000566101 - 2⁹ = 660000565589 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 (660000566111) 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, 14347838371 + ... + 14347838416.

It is an arithmetic number, because the mean of its divisors is an integer number (172174060728).

Almost surely, 2^660000566101 is an apocalyptic number.

It is an amenable number.

660000566101 is a deficient number, since it is larger than the sum of its proper divisors (28695676811).

660000566101 is a wasteful number, since it uses less digits than its factorization.

660000566101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28695676810.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 660000566101 its reverse (101665000066), we get a palindrome (761665566167).

The spelling of 660000566101 in words is "six hundred sixty billion, five hundred sixty-six thousand, one hundred one".