20436454001 has 4 divisors (see below), whose sum is σ = 21638598372. Its totient is φ = 19234309632.

The previous prime is 20436453991. The next prime is 20436454067. The reversal of 20436454001 is 10045463402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16926010000 + 3510444001 = 130100^2 + 59249^2 .

It is a cyclic number.

It is not a de Polignac number, because 20436454001 - 2¹⁴ = 20436437617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20436454091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601072160 + ... + 601072193.

It is an arithmetic number, because the mean of its divisors is an integer number (5409649593).

Almost surely, 2^20436454001 is an apocalyptic number.

It is an amenable number.

20436454001 is a deficient number, since it is larger than the sum of its proper divisors (1202144371).

20436454001 is a wasteful number, since it uses less digits than its factorization.

20436454001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202144370.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 20436454001 in words is "twenty billion, four hundred thirty-six million, four hundred fifty-four thousand, one".