20205332108 has 24 divisors (see below), whose sum is σ = 40083454320. Its totient is φ = 8834719680.

The previous prime is 20205332047. The next prime is 20205332111. The reversal of 20205332108 is 80123350202.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10224383 + ... + 10226358.

It is an arithmetic number, because the mean of its divisors is an integer number (1670143930).

Almost surely, 2^20205332108 is an apocalyptic number.

It is an amenable number.

20205332108 is a deficient number, since it is larger than the sum of its proper divisors (19878122212).

20205332108 is a wasteful number, since it uses less digits than its factorization.

20205332108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20450777 (or 20450775 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 20205332108 in words is "twenty billion, two hundred five million, three hundred thirty-two thousand, one hundred eight".