20352446400029 has 4 divisors (see below), whose sum is σ = 20532556545276. Its totient is φ = 20172336254784.

The previous prime is 20352446400019. The next prime is 20352446400061. The reversal of 20352446400029 is 92000464425302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10215067994404 + 10137378405625 = 3196102^2 + 3183925^2 .

It is a cyclic number.

It is not a de Polignac number, because 20352446400029 - 2⁴⁴ = 2760260355613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352446400019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90055072454 + ... + 90055072679.

It is an arithmetic number, because the mean of its divisors is an integer number (5133139136319).

Almost surely, 2^{20352446400029} is an apocalyptic number.

It is an amenable number.

20352446400029 is a deficient number, since it is larger than the sum of its proper divisors (180110145247).

20352446400029 is a wasteful number, since it uses less digits than its factorization.

20352446400029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180110145246.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 20352446400029 in words is "twenty trillion, three hundred fifty-two billion, four hundred forty-six million, four hundred thousand, twenty-nine".