660000011 has 8 divisors (see below), whose sum is σ = 724770048. Its totient is φ = 596025000.

The previous prime is 660000007. The next prime is 660000031. The reversal of 660000011 is 110000066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660000011 - 2² = 660000007 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (660000031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197015 + ... + 200336.

It is an arithmetic number, because the mean of its divisors is an integer number (90596256).

Almost surely, 2^660000011 is an apocalyptic number.

660000011 is a deficient number, since it is larger than the sum of its proper divisors (64770037).

660000011 is a wasteful number, since it uses less digits than its factorization.

660000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397513.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 660000011 is about 25690.4653714175. The cubic root of 660000011 is about 870.6587739544.

Adding to 660000011 its reverse (110000066), we get a palindrome (770000077).

Subtracting from 660000011 its reverse (110000066), we obtain a palindrome (549999945).

The spelling of 660000011 in words is "six hundred sixty million, eleven", and thus it is an aban number.