20663462144433 has 8 divisors (see below), whose sum is σ = 27557464452768. Its totient is φ = 13772550632864.

The previous prime is 20663462144323. The next prime is 20663462144441. The reversal of 20663462144433 is 33444126436602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20663462144433 - 2¹⁸ = 20663461882289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20663462144443) 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, 772683591 + ... + 772710332.

It is an arithmetic number, because the mean of its divisors is an integer number (3444683056596).

Almost surely, 2^{20663462144433} is an apocalyptic number.

It is an amenable number.

20663462144433 is a deficient number, since it is larger than the sum of its proper divisors (6894002308335).

20663462144433 is a wasteful number, since it uses less digits than its factorization.

20663462144433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545398383.

The product of its (nonzero) digits is 5971968, while the sum is 48.

The spelling of 20663462144433 in words is "twenty trillion, six hundred sixty-three billion, four hundred sixty-two million, one hundred forty-four thousand, four hundred thirty-three".