21404550060006 has 64 divisors (see below), whose sum is σ = 43742067828480. Its totient is φ = 6980832144000.

The previous prime is 21404550059989. The next prime is 21404550060011. The reversal of 21404550060006 is 60006005540412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162705256 + ... + 162836756.

It is an arithmetic number, because the mean of its divisors is an integer number (683469809820).

Almost surely, 2^{21404550060006} is an apocalyptic number.

21404550060006 is an abundant number, since it is smaller than the sum of its proper divisors (22337517768474).

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

21404550060006 is a wasteful number, since it uses less digits than its factorization.

21404550060006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134309.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 21404550060006 in words is "twenty-one trillion, four hundred four billion, five hundred fifty million, sixty thousand, six".