20730552200 has 36 divisors (see below), whose sum is σ = 48203268495. Its totient is φ = 8291406400.

The previous prime is 20730552197. The next prime is 20730552229. The reversal of 20730552200 is 225503702.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 9456784516 + 11273767684 = 97246^2 + 106178^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=101810.

It is a self number, because there is not a number n which added to its sum of digits gives 20730552200.

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, 2031110 + ... + 2041290.

Almost surely, 2^20730552200 is an apocalyptic number.

20730552200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20730552200 is an abundant number, since it is smaller than the sum of its proper divisors (27472716295).

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

20730552200 is an frugal number, since it uses more digits than its factorization.

20730552200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378 (or 10188 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The spelling of 20730552200 in words is "twenty billion, seven hundred thirty million, five hundred fifty-two thousand, two hundred".