13334697648 has 120 divisors (see below), whose sum is σ = 40241226480. Its totient is φ = 4108216320.

The previous prime is 13334697589. The next prime is 13334697749. The reversal of 13334697648 is 84679643331.

It is a happy number.

13334697648 is a `hidden beast` number, since 133 + 3 + 469 + 7 + 6 + 48 = 666.

It is a super-2 number, since 2×13334697648² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13334697594 and 13334697603.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52740 + ... + 171612.

It is an arithmetic number, because the mean of its divisors is an integer number (335343554).

Almost surely, 2^13334697648 is an apocalyptic number.

13334697648 is a gapful number since it is divisible by the number (18) 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 13334697648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20120613240).

13334697648 is an abundant number, since it is smaller than the sum of its proper divisors (26906528832).

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

13334697648 is a wasteful number, since it uses less digits than its factorization.

13334697648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118947 (or 118938 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 13334697648 in words is "thirteen billion, three hundred thirty-four million, six hundred ninety-seven thousand, six hundred forty-eight".