18497219066 has 8 divisors (see below), whose sum is σ = 28640855424. Its totient is φ = 8950267260.

The previous prime is 18497219057. The next prime is 18497219101. The reversal of 18497219066 is 66091279481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18497219066² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18497218999 and 18497219017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149171060 + ... + 149171183.

It is an arithmetic number, because the mean of its divisors is an integer number (3580106928).

Almost surely, 2^18497219066 is an apocalyptic number.

18497219066 is a deficient number, since it is larger than the sum of its proper divisors (10143636358).

18497219066 is a wasteful number, since it uses less digits than its factorization.

18497219066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298342276.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 18497219066 in words is "eighteen billion, four hundred ninety-seven million, two hundred nineteen thousand, sixty-six".