100506648021804 has 84 divisors (see below), whose sum is σ = 268684963381296. Its totient is φ = 32870098673568.

The previous prime is 100506648021739. The next prime is 100506648021817. The reversal of 100506648021804 is 408120846605001.

It is a happy number.

100506648021804 is a `hidden beast` number, since 1 + 0 + 0 + 506 + 6 + 48 + 0 + 21 + 80 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 100506648021804.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 325008664 + ... + 325317759.

It is an arithmetic number, because the mean of its divisors is an integer number (3198630516444).

Almost surely, 2^{100506648021804} is an apocalyptic number.

It is an amenable number.

100506648021804 is an abundant number, since it is smaller than the sum of its proper divisors (168178315359492).

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

100506648021804 is an equidigital number, since it uses as much as digits as its factorization.

100506648021804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650326498 (or 650326481 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 100506648021804 in words is "one hundred trillion, five hundred six billion, six hundred forty-eight million, twenty-one thousand, eight hundred four".