15422434215144 has 64 divisors (see below), whose sum is σ = 42146848903680. Its totient is φ = 4663946616000.

The previous prime is 15422434215137. The next prime is 15422434215269. The reversal of 15422434215144 is 44151243422451.

It is a junction number, because it is equal to n+sod(n) for n = 15422434215096 and 15422434215105.

It is an unprimeable number.

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, 59359492 + ... + 59618739.

It is an arithmetic number, because the mean of its divisors is an integer number (658544514120).

Almost surely, 2^{15422434215144} is an apocalyptic number.

It is an amenable number.

15422434215144 is an abundant number, since it is smaller than the sum of its proper divisors (26724414688536).

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

15422434215144 is a wasteful number, since it uses less digits than its factorization.

15422434215144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118978742 (or 118978738 counting only the distinct ones).

The product of its digits is 614400, while the sum is 42.

Adding to 15422434215144 its reverse (44151243422451), we get a palindrome (59573677637595).

The spelling of 15422434215144 in words is "fifteen trillion, four hundred twenty-two billion, four hundred thirty-four million, two hundred fifteen thousand, one hundred forty-four".