20305127745126 has 96 divisors (see below), whose sum is σ = 54885855548160. Its totient is φ = 5496124785696.

The previous prime is 20305127745053. The next prime is 20305127745143. The reversal of 20305127745126 is 62154772150302.

20305127745126 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 5 + 127 + 7 + 4 + 512 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157003401 + ... + 157132676.

It is an arithmetic number, because the mean of its divisors is an integer number (571727661960).

Almost surely, 2^{20305127745126} is an apocalyptic number.

20305127745126 is an abundant number, since it is smaller than the sum of its proper divisors (34580727803034).

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

20305127745126 is a wasteful number, since it uses less digits than its factorization.

20305127745126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314136120 (or 314136108 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

Adding to 20305127745126 its reverse (62154772150302), we get a palindrome (82459899895428).

The spelling of 20305127745126 in words is "twenty trillion, three hundred five billion, one hundred twenty-seven million, seven hundred forty-five thousand, one hundred twenty-six".