20305143614476 has 24 divisors (see below), whose sum is σ = 40610834141696. Its totient is φ = 8702087210640.

The previous prime is 20305143614473. The next prime is 20305143614491. The reversal of 20305143614476 is 67441634150302.

It is not an unprimeable number, because it can be changed into a prime (20305143614473) 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 in 7 ways as a sum of consecutive naturals, for example, 2750580 + ... + 6940891.

Almost surely, 2^{20305143614476} is an apocalyptic number.

It is an amenable number.

20305143614476 is an abundant number, since it is smaller than the sum of its proper divisors (20305690527220).

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

20305143614476 is a wasteful number, since it uses less digits than its factorization.

20305143614476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766309 (or 9766307 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

Adding to 20305143614476 its reverse (67441634150302), we get a palindrome (87746777764778).

The spelling of 20305143614476 in words is "twenty trillion, three hundred five billion, one hundred forty-three million, six hundred fourteen thousand, four hundred seventy-six".