16041663323538 has 32 divisors (see below), whose sum is σ = 32444828614080. Its totient is φ = 5287114065600.

The previous prime is 16041663323513. The next prime is 16041663323561. The reversal of 16041663323538 is 83532336614061.

It is a Curzon 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, 17462445 + ... + 18358112.

It is an arithmetic number, because the mean of its divisors is an integer number (1013900894190).

Almost surely, 2^{16041663323538} is an apocalyptic number.

16041663323538 is an abundant number, since it is smaller than the sum of its proper divisors (16403165290542).

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

16041663323538 is a wasteful number, since it uses less digits than its factorization.

16041663323538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35821402.

The product of its (nonzero) digits is 5598720, while the sum is 51.

Adding to 16041663323538 its reverse (83532336614061), we get a palindrome (99573999937599).

The spelling of 16041663323538 in words is "sixteen trillion, forty-one billion, six hundred sixty-three million, three hundred twenty-three thousand, five hundred thirty-eight".