20330503647 has 16 divisors (see below), whose sum is σ = 27296729088. Its totient is φ = 13459039200.

The previous prime is 20330503639. The next prime is 20330503717. The reversal of 20330503647 is 74630503302.

It is not a de Polignac number, because 20330503647 - 2³ = 20330503639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330503547) 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, 1594098 + ... + 1606800.

It is an arithmetic number, because the mean of its divisors is an integer number (1706045568).

Almost surely, 2^20330503647 is an apocalyptic number.

20330503647 is a deficient number, since it is larger than the sum of its proper divisors (6966225441).

20330503647 is a wasteful number, since it uses less digits than its factorization.

20330503647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390.

The product of its (nonzero) digits is 45360, while the sum is 33.

The spelling of 20330503647 in words is "twenty billion, three hundred thirty million, five hundred three thousand, six hundred forty-seven".