20344555153206 has 24 divisors (see below), whose sum is σ = 44080083308664. Its totient is φ = 6781485490560.

The previous prime is 20344555153189. The next prime is 20344555153207. The reversal of 20344555153206 is 60235155544302.

20344555153206 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 45 + 551 + 53 + 2 + 0 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344555153207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1228225 + ... + 6495971.

It is an arithmetic number, because the mean of its divisors is an integer number (1836670137861).

Almost surely, 2^{20344555153206} is an apocalyptic number.

20344555153206 is an abundant number, since it is smaller than the sum of its proper divisors (23735528155458).

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

20344555153206 is a wasteful number, since it uses less digits than its factorization.

20344555153206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482316 (or 5482313 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 20344555153206 in words is "twenty trillion, three hundred forty-four billion, five hundred fifty-five million, one hundred fifty-three thousand, two hundred six".