218119065 has 16 divisors (see below), whose sum is σ = 350520000. Its totient is φ = 115820352.

The previous prime is 218119043. The next prime is 218119081. The reversal of 218119065 is 560911812.

It is not a de Polignac number, because 218119065 - 2⁹ = 218118553 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, 28315 + ... + 35184.

It is an arithmetic number, because the mean of its divisors is an integer number (21907500).

Almost surely, 2^218119065 is an apocalyptic number.

It is an amenable number.

218119065 is a deficient number, since it is larger than the sum of its proper divisors (132400935).

218119065 is a wasteful number, since it uses less digits than its factorization.

218119065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63736.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 218119065 is about 14768.8545595114. The cubic root of 218119065 is about 601.9557155903.

It can be divided in two parts, 21811 and 9065, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 218119065 in words is "two hundred eighteen million, one hundred nineteen thousand, sixty-five".