100406643066 has 48 divisors (see below), whose sum is σ = 225640029888. Its totient is φ = 33463692000.

The previous prime is 100406643013. The next prime is 100406643229. The reversal of 100406643066 is 660346604001.

100406643066 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 0 + 6 + 643 + 0 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100406643066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4338646 + ... + 4361726.

It is an arithmetic number, because the mean of its divisors is an integer number (4700833956).

Almost surely, 2^100406643066 is an apocalyptic number.

100406643066 is an abundant number, since it is smaller than the sum of its proper divisors (125233386822).

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

100406643066 is an equidigital number, since it uses as much as digits as its factorization.

100406643066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32049 (or 32037 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 100406643066 in words is "one hundred billion, four hundred six million, six hundred forty-three thousand, sixty-six".