13149982656 has 84 divisors (see below), whose sum is σ = 37738888200. Its totient is φ = 4377881088.

The previous prime is 13149982649. The next prime is 13149982663. The reversal of 13149982656 is 65628994131.

13149982656 is a `hidden beast` number, since 13 + 1 + 499 + 82 + 65 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (13149982649) and next prime (13149982663).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463735 + ... + 491273.

Almost surely, 2^13149982656 is an apocalyptic number.

13149982656 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 13149982656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869444100).

13149982656 is an abundant number, since it is smaller than the sum of its proper divisors (24588905544).

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

13149982656 is a wasteful number, since it uses less digits than its factorization.

13149982656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28386 (or 28373 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 13149982656 in words is "thirteen billion, one hundred forty-nine million, nine hundred eighty-two thousand, six hundred fifty-six".