20354212036436 has 6 divisors (see below), whose sum is σ = 35619871063770. Its totient is φ = 10177106018216.

The previous prime is 20354212036393. The next prime is 20354212036439. The reversal of 20354212036436 is 63463021245302.

It can be written as a sum of positive squares in only one way, i.e., 20312994916036 + 41217120400 = 4506994^2 + 203020^2 .

It is a super-2 number, since 2×20354212036436² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20354212036393 and 20354212036402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354212036439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2544276504551 + ... + 2544276504558.

It is an arithmetic number, because the mean of its divisors is an integer number (5936645177295).

Almost surely, 2^{20354212036436} is an apocalyptic number.

It is an amenable number.

20354212036436 is a deficient number, since it is larger than the sum of its proper divisors (15265659027334).

20354212036436 is a wasteful number, since it uses less digits than its factorization.

20354212036436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088553009113 (or 5088553009111 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 20354212036436 in words is "twenty trillion, three hundred fifty-four billion, two hundred twelve million, thirty-six thousand, four hundred thirty-six".