18076665 has 16 divisors (see below), whose sum is σ = 28986048. Its totient is φ = 9619776.

The previous prime is 18076633. The next prime is 18076693. The reversal of 18076665 is 56667081.

It is not a de Polignac number, because 18076665 - 2⁵ = 18076633 is a prime.

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, 7779 + ... + 9831.

It is an arithmetic number, because the mean of its divisors is an integer number (1811628).

Almost surely, 2^18076665 is an apocalyptic number.

18076665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18076665 is a deficient number, since it is larger than the sum of its proper divisors (10909383).

18076665 is a wasteful number, since it uses less digits than its factorization.

18076665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 18076665 is about 4251.6661439958. Note that the first 3 decimals coincide. The cubic root of 18076665 is about 262.4456849073.

The spelling of 18076665 in words is "eighteen million, seventy-six thousand, six hundred sixty-five".