20400144333 has 8 divisors (see below), whose sum is σ = 28631781600. Its totient is φ = 12884301648.

The previous prime is 20400144319. The next prime is 20400144353. The reversal of 20400144333 is 33344100402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20400144333 - 2⁶ = 20400144269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400144353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178948578 + ... + 178948691.

It is an arithmetic number, because the mean of its divisors is an integer number (3578972700).

Almost surely, 2^20400144333 is an apocalyptic number.

It is an amenable number.

20400144333 is a deficient number, since it is larger than the sum of its proper divisors (8231637267).

20400144333 is a wasteful number, since it uses less digits than its factorization.

20400144333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357897291.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20400144333 its reverse (33344100402), we get a palindrome (53744244735).

The spelling of 20400144333 in words is "twenty billion, four hundred million, one hundred forty-four thousand, three hundred thirty-three".