20507044232 has 8 divisors (see below), whose sum is σ = 38450707950. Its totient is φ = 10253522112.

The previous prime is 20507044199. The next prime is 20507044273. The reversal of 20507044232 is 23244070502.

It can be written as a sum of positive squares in only one way, i.e., 20502230596 + 4813636 = 143186^2 + 2194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20507044195 and 20507044204.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1281690257 + ... + 1281690272.

Almost surely, 2^20507044232 is an apocalyptic number.

It is an amenable number.

20507044232 is a deficient number, since it is larger than the sum of its proper divisors (17943663718).

20507044232 is a wasteful number, since it uses less digits than its factorization.

20507044232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563380535 (or 2563380531 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The spelling of 20507044232 in words is "twenty billion, five hundred seven million, forty-four thousand, two hundred thirty-two".