20040453264451 has 16 divisors (see below), whose sum is σ = 21622048911360. Its totient is φ = 18517152376800.

The previous prime is 20040453264421. The next prime is 20040453264521. The reversal of 20040453264451 is 15446235404002.

It is not a de Polignac number, because 20040453264451 - 2²¹ = 20040451167299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20040453264421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77805571 + ... + 78062716.

It is an arithmetic number, because the mean of its divisors is an integer number (1351378056960).

Almost surely, 2^{20040453264451} is an apocalyptic number.

20040453264451 is a deficient number, since it is larger than the sum of its proper divisors (1581595646909).

20040453264451 is a wasteful number, since it uses less digits than its factorization.

20040453264451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155868474.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 20040453264451 its reverse (15446235404002), we get a palindrome (35486688668453).

The spelling of 20040453264451 in words is "twenty trillion, forty billion, four hundred fifty-three million, two hundred sixty-four thousand, four hundred fifty-one".