15520445343142 has 32 divisors (see below), whose sum is σ = 24684820962912. Its totient is φ = 7293458640384.

The previous prime is 15520445343089. The next prime is 15520445343187. The reversal of 15520445343142 is 24134354402551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442753288 + ... + 442788340.

It is an arithmetic number, because the mean of its divisors is an integer number (771400655091).

Almost surely, 2^{15520445343142} is an apocalyptic number.

15520445343142 is a deficient number, since it is larger than the sum of its proper divisors (9164375619770).

15520445343142 is a wasteful number, since it uses less digits than its factorization.

15520445343142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53032.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 15520445343142 its reverse (24134354402551), we get a palindrome (39654799745693).

The spelling of 15520445343142 in words is "fifteen trillion, five hundred twenty billion, four hundred forty-five million, three hundred forty-three thousand, one hundred forty-two".