15540323241343 has 16 divisors (see below), whose sum is σ = 15594521795424. Its totient is φ = 15486227568000.

The previous prime is 15540323241341. The next prime is 15540323241353. The reversal of 15540323241343 is 34314232304551.

It is a cyclic number.

It is not a de Polignac number, because 15540323241343 - 2¹ = 15540323241341 is a prime.

It is a super-3 number, since 3×15540323241343³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15540323241296 and 15540323241305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15540323241341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1479884593 + ... + 1479895093.

It is an arithmetic number, because the mean of its divisors is an integer number (974657612214).

Almost surely, 2^{15540323241343} is an apocalyptic number.

15540323241343 is a deficient number, since it is larger than the sum of its proper divisors (54198554081).

15540323241343 is a wasteful number, since it uses less digits than its factorization.

15540323241343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14922.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 15540323241343 its reverse (34314232304551), we get a palindrome (49854555545894).

The spelling of 15540323241343 in words is "fifteen trillion, five hundred forty billion, three hundred twenty-three million, two hundred forty-one thousand, three hundred forty-three".