13365202540 has 24 divisors (see below), whose sum is σ = 28070960400. Its totient is φ = 5345312448.

The previous prime is 13365202523. The next prime is 13365202553. The reversal of 13365202540 is 4520256331.

It is a happy 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, 106719 + ... + 195241.

It is an arithmetic number, because the mean of its divisors is an integer number (1169623350).

Almost surely, 2^13365202540 is an apocalyptic number.

13365202540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13365202540 is an abundant number, since it is smaller than the sum of its proper divisors (14705757860).

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

13365202540 is a wasteful number, since it uses less digits than its factorization.

13365202540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96081 (or 96079 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13365202540 its reverse (4520256331), we get a palindrome (17885458871).

The spelling of 13365202540 in words is "thirteen billion, three hundred sixty-five million, two hundred two thousand, five hundred forty".