16218064 has 10 divisors (see below), whose sum is σ = 31422530. Its totient is φ = 8109024.

The previous prime is 16218049. The next prime is 16218079. The reversal of 16218064 is 46081261.

It is an interprime number because it is at equal distance from previous prime (16218049) and next prime (16218079).

It can be written as a sum of positive squares in only one way, i.e., 12250000 + 3968064 = 3500^2 + 1992^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506799 + ... + 506830.

It is an arithmetic number, because the mean of its divisors is an integer number (3142253).

Almost surely, 2^16218064 is an apocalyptic number.

It is an amenable number.

16218064 is a deficient number, since it is larger than the sum of its proper divisors (15204466).

16218064 is a wasteful number, since it uses less digits than its factorization.

16218064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013637 (or 1013631 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 16218064 is about 4027.1657527348. The cubic root of 16218064 is about 253.1238126043.

The spelling of 16218064 in words is "sixteen million, two hundred eighteen thousand, sixty-four".