15408220215342 has 32 divisors (see below), whose sum is σ = 31644531432864. Its totient is φ = 4999794278400.

The previous prime is 15408220215331. The next prime is 15408220215343. The reversal of 15408220215342 is 24351202280451.

It is a self number, because there is not a number n which added to its sum of digits gives 15408220215342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15408220215343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216969459 + ... + 217040462.

It is an arithmetic number, because the mean of its divisors is an integer number (988891607277).

Almost surely, 2^{15408220215342} is an apocalyptic number.

15408220215342 is an abundant number, since it is smaller than the sum of its proper divisors (16236311217522).

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

15408220215342 is a wasteful number, since it uses less digits than its factorization.

15408220215342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434010084.

The product of its (nonzero) digits is 153600, while the sum is 39.

Adding to 15408220215342 its reverse (24351202280451), we get a palindrome (39759422495793).

The spelling of 15408220215342 in words is "fifteen trillion, four hundred eight billion, two hundred twenty million, two hundred fifteen thousand, three hundred forty-two".