16064564 has 6 divisors (see below), whose sum is σ = 28112994. Its totient is φ = 8032280.

The previous prime is 16064561. The next prime is 16064569. The reversal of 16064564 is 46546061.

It can be written as a sum of positive squares in only one way, i.e., 15272464 + 792100 = 3908^2 + 890^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16064564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16064561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2008067 + ... + 2008074.

It is an arithmetic number, because the mean of its divisors is an integer number (4685499).

Almost surely, 2^16064564 is an apocalyptic number.

It is an amenable number.

16064564 is a deficient number, since it is larger than the sum of its proper divisors (12048430).

16064564 is a wasteful number, since it uses less digits than its factorization.

16064564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016145 (or 4016143 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 16064564 is about 4008.0623747641. The cubic root of 16064564 is about 252.3226948572.

The spelling of 16064564 in words is "sixteen million, sixty-four thousand, five hundred sixty-four".