208129456332 has 144 divisors (see below), whose sum is σ = 646134128640. Its totient is φ = 55132171776.

The previous prime is 208129456321. The next prime is 208129456357. The reversal of 208129456332 is 233654921802.

208129456332 is a `hidden beast` number, since 2 + 0 + 8 + 1 + 2 + 9 + 4 + 5 + 633 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75532 + ... + 649587.

It is an arithmetic number, because the mean of its divisors is an integer number (4487042560).

Almost surely, 2^208129456332 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 208129456332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323067064320).

208129456332 is an abundant number, since it is smaller than the sum of its proper divisors (438004672308).

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

208129456332 is a wasteful number, since it uses less digits than its factorization.

208129456332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725220 (or 725215 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 208129456332 in words is "two hundred eight billion, one hundred twenty-nine million, four hundred fifty-six thousand, three hundred thirty-two".