18030806223 has 16 divisors (see below), whose sum is σ = 24501173760. Its totient is φ = 11790608544.

The previous prime is 18030806221. The next prime is 18030806249. The reversal of 18030806223 is 32260803081.

It is not a de Polignac number, because 18030806223 - 2¹ = 18030806221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030806221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690438 + ... + 716076.

It is an arithmetic number, because the mean of its divisors is an integer number (1531323360).

Almost surely, 2^18030806223 is an apocalyptic number.

18030806223 is a deficient number, since it is larger than the sum of its proper divisors (6470367537).

18030806223 is a wasteful number, since it uses less digits than its factorization.

18030806223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30118.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 18030806223 in words is "eighteen billion, thirty million, eight hundred six thousand, two hundred twenty-three".