20808532200 has 48 divisors (see below), whose sum is σ = 64506451680. Its totient is φ = 5548941760.

The previous prime is 20808532189. The next prime is 20808532273. The reversal of 20808532200 is 223580802.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17339844 + ... + 17341043.

It is an arithmetic number, because the mean of its divisors is an integer number (1343884410).

Almost surely, 2^20808532200 is an apocalyptic number.

20808532200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20808532200 is an abundant number, since it is smaller than the sum of its proper divisors (43697919480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20808532200 is a wasteful number, since it uses less digits than its factorization.

20808532200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34680906 (or 34680897 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 20808532200 in words is "twenty billion, eight hundred eight million, five hundred thirty-two thousand, two hundred".