20450031043564 has 6 divisors (see below), whose sum is σ = 35787554326244. Its totient is φ = 10225015521780.

The previous prime is 20450031043501. The next prime is 20450031043573. The reversal of 20450031043564 is 46534013005402.

20450031043564 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2556253880442 + ... + 2556253880449.

Almost surely, 2^{20450031043564} is an apocalyptic number.

It is an amenable number.

20450031043564 is a deficient number, since it is larger than the sum of its proper divisors (15337523282680).

20450031043564 is a wasteful number, since it uses less digits than its factorization.

20450031043564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112507760895 (or 5112507760893 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 20450031043564 its reverse (46534013005402), we get a palindrome (66984044048966).

The spelling of 20450031043564 in words is "twenty trillion, four hundred fifty billion, thirty-one million, forty-three thousand, five hundred sixty-four".