13266652311540 has 96 divisors (see below), whose sum is σ = 41434629183360. Its totient is φ = 3524008255488.

The previous prime is 13266652311461. The next prime is 13266652311547. The reversal of 13266652311540 is 4511325666231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13266652311547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47658642 + ... + 47936201.

It is an arithmetic number, because the mean of its divisors is an integer number (431610720660).

Almost surely, 2^{13266652311540} is an apocalyptic number.

13266652311540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13266652311540 is an abundant number, since it is smaller than the sum of its proper divisors (28167976871820).

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

13266652311540 is a wasteful number, since it uses less digits than its factorization.

13266652311540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95595118 (or 95595110 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

Adding to 13266652311540 its reverse (4511325666231), we get a palindrome (17777977977771).

The spelling of 13266652311540 in words is "thirteen trillion, two hundred sixty-six billion, six hundred fifty-two million, three hundred eleven thousand, five hundred forty".