666051150666 has 64 divisors (see below), whose sum is σ = 1500797859840. Its totient is φ = 195319724160.

The previous prime is 666051150637. The next prime is 666051150673.

666051150666 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930196 + ... + 1482351.

It is an arithmetic number, because the mean of its divisors is an integer number (23449966560).

Almost surely, 2^666051150666 is an apocalyptic number.

666051150666 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

666051150666 is an abundant number, since it is smaller than the sum of its proper divisors (834746709174).

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

666051150666 is a wasteful number, since it uses less digits than its factorization.

666051150666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412699.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 666051150666 in words is "six hundred sixty-six billion, fifty-one million, one hundred fifty thousand, six hundred sixty-six".