666006111005 has 16 divisors (see below), whose sum is σ = 834016829184. Its totient is φ = 509601966720.

The previous prime is 666006110993. The next prime is 666006111053. The reversal of 666006111005 is 500111600666.

It is not a de Polignac number, because 666006111005 - 2¹⁶ = 666006045469 is a prime.

It is a super-2 number, since 2×666006111005² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410560 + ... + 1822550.

It is an arithmetic number, because the mean of its divisors is an integer number (52126051824).

Almost surely, 2^666006111005 is an apocalyptic number.

It is an amenable number.

666006111005 is a deficient number, since it is larger than the sum of its proper divisors (168010718179).

666006111005 is a wasteful number, since it uses less digits than its factorization.

666006111005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426076.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 666006111005 in words is "six hundred sixty-six billion, six million, one hundred eleven thousand, five".