208300921920 has 672 divisors, whose sum is σ = 914497828608. Its totient is φ = 43947712512.

The previous prime is 208300921903. The next prime is 208300921943. The reversal of 208300921920 is 29129003802.

208300921920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7061442 + ... + 7090878.

It is an arithmetic number, because the mean of its divisors is an integer number (1360859864).

Almost surely, 2^208300921920 is an apocalyptic number.

208300921920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208300921920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457248914304).

208300921920 is an abundant number, since it is smaller than the sum of its proper divisors (706196906688).

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

208300921920 is a wasteful number, since it uses less digits than its factorization.

208300921920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29489 (or 29467 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 208300921920 in words is "two hundred eight billion, three hundred million, nine hundred twenty-one thousand, nine hundred twenty".