20345020052549 has 8 divisors (see below), whose sum is σ = 20364934899072. Its totient is φ = 20325106267200.

The previous prime is 20345020052509. The next prime is 20345020052573. The reversal of 20345020052549 is 94525002054302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20345020052549 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 (20345020052509) 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 7 ways as a sum of consecutive naturals, for example, 41272637 + ... + 41762669.

It is an arithmetic number, because the mean of its divisors is an integer number (2545616862384).

Almost surely, 2^{20345020052549} is an apocalyptic number.

It is an amenable number.

20345020052549 is a deficient number, since it is larger than the sum of its proper divisors (19914846523).

20345020052549 is a wasteful number, since it uses less digits than its factorization.

20345020052549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530587.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 20345020052549 in words is "twenty trillion, three hundred forty-five billion, twenty million, fifty-two thousand, five hundred forty-nine".