13472828656 has 80 divisors (see below), whose sum is σ = 30934908928. Its totient is φ = 5562432000.

The previous prime is 13472828651. The next prime is 13472828701. The reversal of 13472828656 is 65682827431.

It is a super-2 number, since 2×13472828656² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13472828651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765556 + ... + 782956.

Almost surely, 2^13472828656 is an apocalyptic number.

13472828656 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 13472828656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15467454464).

13472828656 is an abundant number, since it is smaller than the sum of its proper divisors (17462080272).

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

13472828656 is a wasteful number, since it uses less digits than its factorization.

13472828656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670 (or 17664 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The spelling of 13472828656 in words is "thirteen billion, four hundred seventy-two million, eight hundred twenty-eight thousand, six hundred fifty-six".