65001066666 has 16 divisors (see below), whose sum is σ = 130143604800. Its totient is φ = 21643443648.

The previous prime is 65001066619. The next prime is 65001066671. The reversal of 65001066666 is 66666010056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5888671 + ... + 5899698.

It is an arithmetic number, because the mean of its divisors is an integer number (8133975300).

Almost surely, 2^65001066666 is an apocalyptic number.

65001066666 is an abundant number, since it is smaller than the sum of its proper divisors (65142538134).

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

65001066666 is a wasteful number, since it uses less digits than its factorization.

65001066666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11789293.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 65001066666 in words is "sixty-five billion, one million, sixty-six thousand, six hundred sixty-six".