20424504664124 has 24 divisors (see below), whose sum is σ = 39030728104368. Its totient is φ = 9274701011840.

The previous prime is 20424504664121. The next prime is 20424504664147. The reversal of 20424504664124 is 42146640542402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424504664121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229073537 + ... + 229162680.

It is an arithmetic number, because the mean of its divisors is an integer number (1626280337682).

Almost surely, 2^{20424504664124} is an apocalyptic number.

It is an amenable number.

20424504664124 is a deficient number, since it is larger than the sum of its proper divisors (18606223440244).

20424504664124 is a wasteful number, since it uses less digits than its factorization.

20424504664124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458237245 (or 458237243 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 20424504664124 in words is "twenty trillion, four hundred twenty-four billion, five hundred four million, six hundred sixty-four thousand, one hundred twenty-four".