208131760920 has 128 divisors (see below), whose sum is σ = 662141096640. Its totient is φ = 52156661760.

The previous prime is 208131760919. The next prime is 208131760957. The reversal of 208131760920 is 29067131802.

208131760920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1254000 + ... + 1410240.

Almost surely, 2^208131760920 is an apocalyptic number.

208131760920 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 208131760920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331070548320).

208131760920 is an abundant number, since it is smaller than the sum of its proper divisors (454009335720).

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

208131760920 is a wasteful number, since it uses less digits than its factorization.

208131760920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156925 (or 156921 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 208131760920 in words is "two hundred eight billion, one hundred thirty-one million, seven hundred sixty thousand, nine hundred twenty".