20014400453 has 2 divisors, whose sum is σ = 20014400454. Its totient is φ = 20014400452.

The previous prime is 20014400411. The next prime is 20014400503. The reversal of 20014400453 is 35400441002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12025973569 + 7988426884 = 109663^2 + 89378^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014400453 - 2¹⁰ = 20014399429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20014400753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007200226 + 10007200227.

It is an arithmetic number, because the mean of its divisors is an integer number (10007200227).

Almost surely, 2^20014400453 is an apocalyptic number.

It is an amenable number.

20014400453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014400453 is an equidigital number, since it uses as much as digits as its factorization.

20014400453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20014400453 its reverse (35400441002), we get a palindrome (55414841455).

The spelling of 20014400453 in words is "twenty billion, fourteen million, four hundred thousand, four hundred fifty-three".