20675958424 has 16 divisors (see below), whose sum is σ = 42291733320. Its totient is φ = 9398162880.

The previous prime is 20675958421. The next prime is 20675958451. The reversal of 20675958424 is 42485957602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675958421) 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 3 ways as a sum of consecutive naturals, for example, 117476949 + ... + 117477124.

Almost surely, 2^20675958424 is an apocalyptic number.

It is an amenable number.

20675958424 is an abundant number, since it is smaller than the sum of its proper divisors (21615774896).

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

20675958424 is a wasteful number, since it uses less digits than its factorization.

20675958424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234954090 (or 234954086 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 20675958424 in words is "twenty billion, six hundred seventy-five million, nine hundred fifty-eight thousand, four hundred twenty-four".