15401044355142 has 16 divisors (see below), whose sum is σ = 30802157994240. Its totient is φ = 5133669904392.

The previous prime is 15401044355119. The next prime is 15401044355143. The reversal of 15401044355142 is 24155344010451.

It is a self number, because there is not a number n which added to its sum of digits gives 15401044355142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15401044355143) 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 7 ways as a sum of consecutive naturals, for example, 268159 + ... + 5556437.

It is an arithmetic number, because the mean of its divisors is an integer number (1925134874640).

Almost surely, 2^{15401044355142} is an apocalyptic number.

15401044355142 is an abundant number, since it is smaller than the sum of its proper divisors (15401113639098).

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

15401044355142 is a wasteful number, since it uses less digits than its factorization.

15401044355142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773667.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 15401044355142 its reverse (24155344010451), we get a palindrome (39556388365593).

The spelling of 15401044355142 in words is "fifteen trillion, four hundred one billion, forty-four million, three hundred fifty-five thousand, one hundred forty-two".