13540065308 has 24 divisors (see below), whose sum is σ = 29541961344. Its totient is φ = 5275350000.

The previous prime is 13540065299. The next prime is 13540065313. The reversal of 13540065308 is 80356004531.

It is a super-4 number, since 4×13540065308⁴ (a number of 42 digits) contains 4444 as substring.

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, 21980318 + ... + 21980933.

It is an arithmetic number, because the mean of its divisors is an integer number (1230915056).

Almost surely, 2^13540065308 is an apocalyptic number.

It is an amenable number.

13540065308 is an abundant number, since it is smaller than the sum of its proper divisors (16001896036).

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

13540065308 is a wasteful number, since it uses less digits than its factorization.

13540065308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43961273 (or 43961271 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 13540065308 its reverse (80356004531), we get a palindrome (93896069839).

The spelling of 13540065308 in words is "thirteen billion, five hundred forty million, sixty-five thousand, three hundred eight".