208231525403264 has 128 divisors (see below), whose sum is σ = 453563018830080. Its totient is φ = 94438739496960.

The previous prime is 208231525403183. The next prime is 208231525403287. The reversal of 208231525403264 is 462304525132802.

It is a tau number, because it is divible by the number of its divisors (128).

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, 1308260774 + ... + 1308419930.

It is an arithmetic number, because the mean of its divisors is an integer number (3543461084610).

Almost surely, 2^{208231525403264} 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 208231525403264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226781509415040).

208231525403264 is an abundant number, since it is smaller than the sum of its proper divisors (245331493426816).

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

208231525403264 is a wasteful number, since it uses less digits than its factorization.

208231525403264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161258 (or 161246 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 208231525403264 in words is "two hundred eight trillion, two hundred thirty-one billion, five hundred twenty-five million, four hundred three thousand, two hundred sixty-four".