13606813696 has 128 divisors (see below), whose sum is σ = 31400177760. Its totient is φ = 5775556608.

The previous prime is 13606813687. The next prime is 13606813709. The reversal of 13606813696 is 69631860631.

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

It is a super-3 number, since 3×13606813696³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31424296 + ... + 31424728.

Almost surely, 2^13606813696 is an apocalyptic number.

13606813696 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 13606813696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15700088880).

13606813696 is an abundant number, since it is smaller than the sum of its proper divisors (17793364064).

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

13606813696 is an frugal number, since it uses more digits than its factorization.

13606813696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 13606813696 in words is "thirteen billion, six hundred six million, eight hundred thirteen thousand, six hundred ninety-six".