18198541151 has 12 divisors (see below), whose sum is σ = 21467900880. Its totient is φ = 15379045920.

The previous prime is 18198541111. The next prime is 18198541217. The reversal of 18198541151 is 15114589181.

It is a happy number.

It is not a de Polignac number, because 18198541151 - 2¹⁰ = 18198540127 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 (18198541111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2612006 + ... + 2618963.

It is an arithmetic number, because the mean of its divisors is an integer number (1788991740).

Almost surely, 2^18198541151 is an apocalyptic number.

18198541151 is a deficient number, since it is larger than the sum of its proper divisors (3269359729).

18198541151 is an equidigital number, since it uses as much as digits as its factorization.

18198541151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231054 (or 5231047 counting only the distinct ones).

The product of its digits is 57600, while the sum is 44.

The spelling of 18198541151 in words is "eighteen billion, one hundred ninety-eight million, five hundred forty-one thousand, one hundred fifty-one".