208342054540220 has 48 divisors (see below), whose sum is σ = 439438937266560. Its totient is φ = 82971005584896.

The previous prime is 208342054540219. The next prime is 208342054540297. The reversal of 208342054540220 is 22045450243802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208684349 + ... + 209680331.

It is an arithmetic number, because the mean of its divisors is an integer number (9154977859720).

Almost surely, 2^{208342054540220} is an apocalyptic number.

208342054540220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208342054540220 is an abundant number, since it is smaller than the sum of its proper divisors (231096882726340).

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

208342054540220 is a wasteful number, since it uses less digits than its factorization.

208342054540220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041894 (or 1041892 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 41.

The spelling of 208342054540220 in words is "two hundred eight trillion, three hundred forty-two billion, fifty-four million, five hundred forty thousand, two hundred twenty".