666896106 has 16 divisors (see below), whose sum is σ = 1334700000. Its totient is φ = 222147408.

The previous prime is 666896101. The next prime is 666896141. The reversal of 666896106 is 601698666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (666896101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28081 + ... + 46068.

It is an arithmetic number, because the mean of its divisors is an integer number (83418750).

Almost surely, 2^666896106 is an apocalyptic number.

666896106 is an abundant number, since it is smaller than the sum of its proper divisors (667803894).

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

666896106 is a wasteful number, since it uses less digits than its factorization.

666896106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75653.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 666896106 is about 25824.3316660858. The cubic root of 666896106 is about 873.6806701014.

The spelling of 666896106 in words is "six hundred sixty-six million, eight hundred ninety-six thousand, one hundred six".