20344235563412 has 6 divisors (see below), whose sum is σ = 35602412235978. Its totient is φ = 10172117781704.

The previous prime is 20344235563411. The next prime is 20344235563417. The reversal of 20344235563412 is 21436553244302.

It can be written as a sum of positive squares in only one way, i.e., 17970528375556 + 2373707187856 = 4239166^2 + 1540684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344235563411) 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 as a sum of consecutive naturals, namely, 2543029445423 + ... + 2543029445430.

It is an arithmetic number, because the mean of its divisors is an integer number (5933735372663).

Almost surely, 2^{20344235563412} is an apocalyptic number.

It is an amenable number.

20344235563412 is a deficient number, since it is larger than the sum of its proper divisors (15258176672566).

20344235563412 is a wasteful number, since it uses less digits than its factorization.

20344235563412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086058890857 (or 5086058890855 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 44.

The spelling of 20344235563412 in words is "twenty trillion, three hundred forty-four billion, two hundred thirty-five million, five hundred sixty-three thousand, four hundred twelve".