18066104690 has 32 divisors (see below), whose sum is σ = 32795086896. Its totient is φ = 7165347840.

The previous prime is 18066104689. The next prime is 18066104713. The reversal of 18066104690 is 9640166081.

It can be written as a sum of positive squares in 8 ways, for example, as 6384169801 + 11681934889 = 79901^2 + 108083^2 .

It is a super-2 number, since 2×18066104690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545444 + ... + 577616.

Almost surely, 2^18066104690 is an apocalyptic number.

18066104690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18066104690 is a deficient number, since it is larger than the sum of its proper divisors (14728982206).

18066104690 is a wasteful number, since it uses less digits than its factorization.

18066104690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32654.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 18066104690 in words is "eighteen billion, sixty-six million, one hundred four thousand, six hundred ninety".