16068049663 has 4 divisors (see below), whose sum is σ = 16094008360. Its totient is φ = 16042090968.

The previous prime is 16068049661. The next prime is 16068049667. The reversal of 16068049663 is 36694086061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36694086061 = 15973 ⋅2297257.

It is a cyclic number.

It is not a de Polignac number, because 16068049663 - 2¹ = 16068049661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16068049661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12978420 + ... + 12979657.

It is an arithmetic number, because the mean of its divisors is an integer number (4023502090).

Almost surely, 2^16068049663 is an apocalyptic number.

16068049663 is a deficient number, since it is larger than the sum of its proper divisors (25958697).

16068049663 is an equidigital number, since it uses as much as digits as its factorization.

16068049663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25958696.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 16068049663 in words is "sixteen billion, sixty-eight million, forty-nine thousand, six hundred sixty-three".