16118863 has 4 divisors (see below), whose sum is σ = 16512048. Its totient is φ = 15725680.

The previous prime is 16118833. The next prime is 16118891. The reversal of 16118863 is 36881161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36881161 = 853 ⋅43237.

It is a cyclic number.

It is not a de Polignac number, because 16118863 - 2¹⁷ = 15987791 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 (16118813) 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, 196531 + ... + 196612.

It is an arithmetic number, because the mean of its divisors is an integer number (4128012).

Almost surely, 2^16118863 is an apocalyptic number.

16118863 is a deficient number, since it is larger than the sum of its proper divisors (393185).

16118863 is an equidigital number, since it uses as much as digits as its factorization.

16118863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393184.

The product of its digits is 6912, while the sum is 34.

The square root of 16118863 is about 4014.8303824695. The cubic root of 16118863 is about 252.6066627755.

The spelling of 16118863 in words is "sixteen million, one hundred eighteen thousand, eight hundred sixty-three".