16648568748615 has 8 divisors (see below), whose sum is σ = 26637709997808. Its totient is φ = 8879236665920.

The previous prime is 16648568748589. The next prime is 16648568748619. The reversal of 16648568748615 is 51684786584661.

It is a happy number.

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

It is not a de Polignac number, because 16648568748615 - 2¹⁶ = 16648568683079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16648568748619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554952291606 + ... + 554952291635.

It is an arithmetic number, because the mean of its divisors is an integer number (3329713749726).

Almost surely, 2^{16648568748615} is an apocalyptic number.

16648568748615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16648568748615 is a deficient number, since it is larger than the sum of its proper divisors (9989141249193).

16648568748615 is a wasteful number, since it uses less digits than its factorization.

16648568748615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109904583249.

The product of its digits is 1857945600, while the sum is 75.

The spelling of 16648568748615 in words is "sixteen trillion, six hundred forty-eight billion, five hundred sixty-eight million, seven hundred forty-eight thousand, six hundred fifteen".