18102066619 has 12 divisors (see below), whose sum is σ = 22677315024. Its totient is φ = 14322513744.

The previous prime is 18102066607. The next prime is 18102066673. The reversal of 18102066619 is 91666020181.

It is not a de Polignac number, because 18102066619 - 2⁷ = 18102066491 is a prime.

It is a super-2 number, since 2×18102066619² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18102063619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14208207 + ... + 14209480.

It is an arithmetic number, because the mean of its divisors is an integer number (1889776252).

Almost surely, 2^18102066619 is an apocalyptic number.

18102066619 is a deficient number, since it is larger than the sum of its proper divisors (4575248405).

18102066619 is a wasteful number, since it uses less digits than its factorization.

18102066619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28417714 (or 28417707 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 18102066619 in words is "eighteen billion, one hundred two million, sixty-six thousand, six hundred nineteen".