13140345321550 has 48 divisors (see below), whose sum is σ = 25143942974832. Its totient is φ = 5105455833600.

The previous prime is 13140345321547. The next prime is 13140345321589. The reversal of 13140345321550 is 5512354304131.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

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, 4891896 + ... + 7085995.

It is an arithmetic number, because the mean of its divisors is an integer number (523832145309).

Almost surely, 2^{13140345321550} is an apocalyptic number.

13140345321550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13140345321550 is a deficient number, since it is larger than the sum of its proper divisors (12003597653282).

13140345321550 is a wasteful number, since it uses less digits than its factorization.

13140345321550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11978533 (or 11978528 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13140345321550 its reverse (5512354304131), we get a palindrome (18652699625681).

The spelling of 13140345321550 in words is "thirteen trillion, one hundred forty billion, three hundred forty-five million, three hundred twenty-one thousand, five hundred fifty".