208557373164 has 192 divisors, whose sum is σ = 569390976000. Its totient is φ = 58190856192.

The previous prime is 208557373147. The next prime is 208557373229. The reversal of 208557373164 is 461373755802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 398771007 + ... + 398771529.

It is an arithmetic number, because the mean of its divisors is an integer number (2965578000).

Almost surely, 2^208557373164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208557373164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284695488000).

208557373164 is an abundant number, since it is smaller than the sum of its proper divisors (360833602836).

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

208557373164 is a wasteful number, since it uses less digits than its factorization.

208557373164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 208557373164 in words is "two hundred eight billion, five hundred fifty-seven million, three hundred seventy-three thousand, one hundred sixty-four".