13662036648 has 96 divisors (see below), whose sum is σ = 41221744200. Its totient is φ = 4058740224.

The previous prime is 13662036623. The next prime is 13662036649. The reversal of 13662036648 is 84663026631.

13662036648 is a `hidden beast` number, since 13 + 6 + 620 + 3 + 6 + 6 + 4 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4705685604 + 8956351044 = 68598^2 + 94638^2 .

It is not an unprimeable number, because it can be changed into a prime (13662036649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224515 + ... + 278802.

Almost surely, 2^13662036648 is an apocalyptic number.

13662036648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13662036648 is an abundant number, since it is smaller than the sum of its proper divisors (27559707552).

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

13662036648 is a wasteful number, since it uses less digits than its factorization.

13662036648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503371 (or 503364 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 13662036648 in words is "thirteen billion, six hundred sixty-two million, thirty-six thousand, six hundred forty-eight".