100009999966 has 8 divisors (see below), whose sum is σ = 150935337864. Its totient is φ = 49698220680.

The previous prime is 100009999951. The next prime is 100009999967. The reversal of 100009999966 is 669999900001.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100009999966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100009999967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153389245 + ... + 153389896.

It is an arithmetic number, because the mean of its divisors is an integer number (18866917233).

Almost surely, 2^100009999966 is an apocalyptic number.

100009999966 is a deficient number, since it is larger than the sum of its proper divisors (50925337898).

100009999966 is a wasteful number, since it uses less digits than its factorization.

100009999966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306779306.

The product of its (nonzero) digits is 2125764, while the sum is 58.

The spelling of 100009999966 in words is "one hundred billion, nine million, nine hundred ninety-nine thousand, nine hundred sixty-six".