16063999 has 8 divisors (see below), whose sum is σ = 18992160. Its totient is φ = 13294176.

The previous prime is 16063973. The next prime is 16064003. The reversal of 16063999 is 99936061.

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

It is not a de Polignac number, because 16063999 - 2¹¹ = 16061951 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 (16063199) 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, 39364 + ... + 39769.

It is an arithmetic number, because the mean of its divisors is an integer number (2374020).

Almost surely, 2^16063999 is an apocalyptic number.

16063999 is a deficient number, since it is larger than the sum of its proper divisors (2928161).

16063999 is an equidigital number, since it uses as much as digits as its factorization.

16063999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79169.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 16063999 is about 4007.9918912094. The cubic root of 16063999 is about 252.3197367108.

The spelling of 16063999 in words is "sixteen million, sixty-three thousand, nine hundred ninety-nine".