20424561174 has 12 divisors (see below), whose sum is σ = 44253215916. Its totient is φ = 6808187052.

The previous prime is 20424561173. The next prime is 20424561193. The reversal of 20424561174 is 47116542402.

20424561174 is a `hidden beast` number, since 2 + 0 + 4 + 24 + 561 + 1 + 74 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424561173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567348904 + ... + 567348939.

It is an arithmetic number, because the mean of its divisors is an integer number (3687767993).

Almost surely, 2^20424561174 is an apocalyptic number.

20424561174 is an abundant number, since it is smaller than the sum of its proper divisors (23828654742).

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

20424561174 is a wasteful number, since it uses less digits than its factorization.

20424561174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134697851 (or 1134697848 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 20424561174 in words is "twenty billion, four hundred twenty-four million, five hundred sixty-one thousand, one hundred seventy-four".