16479639563 has 8 divisors (see below), whose sum is σ = 16832654400. Its totient is φ = 16126724160.

The previous prime is 16479639511. The next prime is 16479639599. The reversal of 16479639563 is 36593697461.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16479639563 - 2²⁴ = 16462862347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16479639763) 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, 379913 + ... + 421061.

It is an arithmetic number, because the mean of its divisors is an integer number (2104081800).

Almost surely, 2^16479639563 is an apocalyptic number.

16479639563 is a deficient number, since it is larger than the sum of its proper divisors (353014837).

16479639563 is an equidigital number, since it uses as much as digits as its factorization.

16479639563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49717.

The product of its digits is 22044960, while the sum is 59.

The spelling of 16479639563 in words is "sixteen billion, four hundred seventy-nine million, six hundred thirty-nine thousand, five hundred sixty-three".