20358000663 has 64 divisors (see below), whose sum is σ = 36806482944. Its totient is φ = 9665280000.

The previous prime is 20358000653. The next prime is 20358000679. The reversal of 20358000663 is 36600085302.

It is not a de Polignac number, because 20358000663 - 2⁵ = 20358000631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20358000653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 269743 + ... + 336863.

It is an arithmetic number, because the mean of its divisors is an integer number (575101296).

Almost surely, 2^20358000663 is an apocalyptic number.

20358000663 is a deficient number, since it is larger than the sum of its proper divisors (16448482281).

20358000663 is a wasteful number, since it uses less digits than its factorization.

20358000663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67256.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 20358000663 its reverse (36600085302), we get a palindrome (56958085965).

The spelling of 20358000663 in words is "twenty billion, three hundred fifty-eight million, six hundred sixty-three", and thus it is an aban number.