218265061 has 12 divisors (see below), whose sum is σ = 254530080. Its totient is φ = 186620280.

The previous prime is 218265043. The next prime is 218265067. The reversal of 218265061 is 160562812.

218265061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 218265061 - 2¹³ = 218256869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218265067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15216 + ... + 25846.

It is an arithmetic number, because the mean of its divisors is an integer number (21210840).

Almost surely, 2^218265061 is an apocalyptic number.

It is an amenable number.

218265061 is a deficient number, since it is larger than the sum of its proper divisors (36265019).

218265061 is a wasteful number, since it uses less digits than its factorization.

218265061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11064 (or 11057 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 218265061 is about 14773.7964315202. The cubic root of 218265061 is about 602.0899901527.

The spelling of 218265061 in words is "two hundred eighteen million, two hundred sixty-five thousand, sixty-one".