20099903525472 has 288 divisors, whose sum is σ = 55071771955200. Its totient is φ = 6418521948160.

The previous prime is 20099903525407. The next prime is 20099903525477. The reversal of 20099903525472 is 27452530999002.

It is a happy number.

It is a super-2 number, since 2×20099903525472² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20099903525477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6923837173 + ... + 6923840075.

It is an arithmetic number, because the mean of its divisors is an integer number (191221430400).

Almost surely, 2^{20099903525472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20099903525472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27535885977600).

20099903525472 is an abundant number, since it is smaller than the sum of its proper divisors (34971868429728).

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

20099903525472 is a wasteful number, since it uses less digits than its factorization.

20099903525472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 20099903525472 in words is "twenty trillion, ninety-nine billion, nine hundred three million, five hundred twenty-five thousand, four hundred seventy-two".