208092640000 has 180 divisors, whose sum is σ = 593202476944. Its totient is φ = 71345664000.

The previous prime is 208092639983. The next prime is 208092640099. The reversal of 208092640000 is 46290802.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1027102 + ... + 1212898.

Almost surely, 2^208092640000 is an apocalyptic number.

208092640000 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 208092640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296601238472).

208092640000 is an abundant number, since it is smaller than the sum of its proper divisors (385109836944).

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

208092640000 is an frugal number, since it uses more digits than its factorization.

208092640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185840 (or 185811 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 208092640000 in words is "two hundred eight billion, ninety-two million, six hundred forty thousand".