20081027600 has 60 divisors (see below), whose sum is σ = 49062432720. Its totient is φ = 7896259200.

The previous prime is 20081027581. The next prime is 20081027609. The reversal of 20081027600 is 672018002.

It is a self number, because there is not a number n which added to its sum of digits gives 20081027600.

It is not an unprimeable number, because it can be changed into a prime (20081027609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401846 + ... + 449045.

It is an arithmetic number, because the mean of its divisors is an integer number (817707212).

Almost surely, 2^20081027600 is an apocalyptic number.

20081027600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20081027600 is an abundant number, since it is smaller than the sum of its proper divisors (28981405120).

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

20081027600 is a wasteful number, since it uses less digits than its factorization.

20081027600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850968 (or 850957 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 20081027600 in words is "twenty billion, eighty-one million, twenty-seven thousand, six hundred".