20340024663 has 16 divisors (see below), whose sum is σ = 32817519360. Its totient is φ = 10939172736.

The previous prime is 20340024613. The next prime is 20340024673. The reversal of 20340024663 is 36642004302.

It is a happy number.

It is not a de Polignac number, because 20340024663 - 2⁶ = 20340024599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20340024663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340024613) 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, 28487073 + ... + 28487786.

It is an arithmetic number, because the mean of its divisors is an integer number (2051094960).

Almost surely, 2^20340024663 is an apocalyptic number.

20340024663 is a deficient number, since it is larger than the sum of its proper divisors (12477494697).

20340024663 is a wasteful number, since it uses less digits than its factorization.

20340024663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56974886.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20340024663 its reverse (36642004302), we get a palindrome (56982028965).

The spelling of 20340024663 in words is "twenty billion, three hundred forty million, twenty-four thousand, six hundred sixty-three".