13453665340 has 24 divisors (see below), whose sum is σ = 28255343760. Its totient is φ = 5380962048.

The previous prime is 13453665311. The next prime is 13453665361. The reversal of 13453665340 is 4356635431.

It is a super-2 number, since 2×13453665340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13453665293 and 13453665302.

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, 247684 + ... + 297076.

It is an arithmetic number, because the mean of its divisors is an integer number (1177305990).

Almost surely, 2^13453665340 is an apocalyptic number.

13453665340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13453665340 is an abundant number, since it is smaller than the sum of its proper divisors (14801678420).

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

13453665340 is a wasteful number, since it uses less digits than its factorization.

13453665340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63021 (or 63019 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 13453665340 in words is "thirteen billion, four hundred fifty-three million, six hundred sixty-five thousand, three hundred forty".