203680716100 has 27 divisors (see below), whose sum is σ = 441996947581. Its totient is φ = 81470481200.

The previous prime is 203680716097. The next prime is 203680716119. The reversal of 203680716100 is 1617086302.

The square root of 203680716100 is 451310.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 73325057796 + 130355658304 = 270786^2 + 361048^2 .

It is a super-2 number, since 2×203680716100² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4490535 + ... + 4535665.

Almost surely, 2^203680716100 is an apocalyptic number.

203680716100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

203680716100 is the 451310-th square number.

It is an amenable number.

203680716100 is an abundant number, since it is smaller than the sum of its proper divisors (238316231481).

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

203680716100 is an frugal number, since it uses more digits than its factorization.

203680716100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90276 (or 45138 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 203680716100 in words is "two hundred three billion, six hundred eighty million, seven hundred sixteen thousand, one hundred".