16550564 has 12 divisors (see below), whose sum is σ = 29132124. Its totient is φ = 8227104.

The previous prime is 16550557. The next prime is 16550587. The reversal of 16550564 is 46505561.

16550564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12902464 + 3648100 = 3592^2 + 1910^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16550564.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11267 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (2427677).

Almost surely, 2^16550564 is an apocalyptic number.

It is an amenable number.

16550564 is a deficient number, since it is larger than the sum of its proper divisors (12581560).

16550564 is a wasteful number, since it uses less digits than its factorization.

16550564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24094 (or 24092 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 16550564 is about 4068.2384394231. The cubic root of 16550564 is about 254.8419576894.

It can be divided in two parts, 16 and 550564, that multiplied together give a square (8809024 = 2968²).

The spelling of 16550564 in words is "sixteen million, five hundred fifty thousand, five hundred sixty-four".