18111690610 has 16 divisors (see below), whose sum is σ = 35108815896. Its totient is φ = 6687393408.

The previous prime is 18111690589. The next prime is 18111690637. The reversal of 18111690610 is 1609611181.

It can be written as a sum of positive squares in 4 ways, for example, as 13284637081 + 4827053529 = 115259^2 + 69477^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69660219 + ... + 69660478.

Almost surely, 2^18111690610 is an apocalyptic number.

18111690610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18111690610 is a deficient number, since it is larger than the sum of its proper divisors (16997125286).

18111690610 is a wasteful number, since it uses less digits than its factorization.

18111690610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139320717.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 18111690610 in words is "eighteen billion, one hundred eleven million, six hundred ninety thousand, six hundred ten".