15550434012142 has 8 divisors (see below), whose sum is σ = 23327103382632. Its totient is φ = 7774732884600.

The previous prime is 15550434012131. The next prime is 15550434012187. The reversal of 15550434012142 is 24121043405551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 242020584 + ... + 242084827.

It is an arithmetic number, because the mean of its divisors is an integer number (2915887922829).

Almost surely, 2^{15550434012142} is an apocalyptic number.

15550434012142 is a deficient number, since it is larger than the sum of its proper divisors (7776669370490).

15550434012142 is a wasteful number, since it uses less digits than its factorization.

15550434012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484121474.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 15550434012142 its reverse (24121043405551), we get a palindrome (39671477417693).

The spelling of 15550434012142 in words is "fifteen trillion, five hundred fifty billion, four hundred thirty-four million, twelve thousand, one hundred forty-two".