13690208256 has 116 divisors (see below), whose sum is σ = 38654705592. Its totient is φ = 4294967296.

The previous prime is 13690208237. The next prime is 13690208261. The reversal of 13690208256 is 65280209631.

It is a nialpdrome in base 16.

It is a zygodrome in base 2 and base 16.

It is an unprimeable number.

In principle, a polygon with 13690208256 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805306360 + ... + 805306376.

Almost surely, 2^13690208256 is an apocalyptic number.

13690208256 is a gapful number since it is divisible by the number (16) 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 13690208256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19327352796).

13690208256 is an abundant number, since it is smaller than the sum of its proper divisors (24964497336).

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

13690208256 is an frugal number, since it uses more digits than its factorization.

13690208256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 22 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 13690208256 in words is "thirteen billion, six hundred ninety million, two hundred eight thousand, two hundred fifty-six".