18065199255 has 32 divisors (see below), whose sum is σ = 29000692224. Its totient is φ = 9602706816.

The previous prime is 18065199247. The next prime is 18065199283. The reversal of 18065199255 is 55299156081.

It is not a de Polignac number, because 18065199255 - 2³ = 18065199247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18065199198 and 18065199207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10423369 + ... + 10425101.

It is an arithmetic number, because the mean of its divisors is an integer number (906271632).

Almost surely, 2^18065199255 is an apocalyptic number.

18065199255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18065199255 is a deficient number, since it is larger than the sum of its proper divisors (10935492969).

18065199255 is a wasteful number, since it uses less digits than its factorization.

18065199255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655.

The product of its (nonzero) digits is 972000, while the sum is 51.

The spelling of 18065199255 in words is "eighteen billion, sixty-five million, one hundred ninety-nine thousand, two hundred fifty-five".