16041663323615 has 4 divisors (see below), whose sum is σ = 19249995988344. Its totient is φ = 12833330658888.

The previous prime is 16041663323599. The next prime is 16041663323657. The reversal of 16041663323615 is 51632336614061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16041663323615 - 2⁴ = 16041663323599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16041663323615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604166332357 + ... + 1604166332366.

It is an arithmetic number, because the mean of its divisors is an integer number (4812498997086).

Almost surely, 2^{16041663323615} is an apocalyptic number.

16041663323615 is a deficient number, since it is larger than the sum of its proper divisors (3208332664729).

16041663323615 is an equidigital number, since it uses as much as digits as its factorization.

16041663323615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208332664728.

The product of its (nonzero) digits is 1399680, while the sum is 47.

Adding to 16041663323615 its reverse (51632336614061), we get a palindrome (67673999937676).

The spelling of 16041663323615 in words is "sixteen trillion, forty-one billion, six hundred sixty-three million, three hundred twenty-three thousand, six hundred fifteen".