16498564 has 24 divisors (see below), whose sum is σ = 30605400. Its totient is φ = 7768320.

The previous prime is 16498561. The next prime is 16498571. The reversal of 16498564 is 46589461.

It can be written as a sum of positive squares in 4 ways, for example, as 562500 + 15936064 = 750^2 + 3992^2 .

It is a super-2 number, since 2×16498564² = 544405228124192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16498564.

It is not an unprimeable number, because it can be changed into a prime (16498561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3022 + ... + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (1275225).

Almost surely, 2^16498564 is an apocalyptic number.

It is an amenable number.

16498564 is a deficient number, since it is larger than the sum of its proper divisors (14106836).

16498564 is a wasteful number, since it uses less digits than its factorization.

16498564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3541 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 16498564 is about 4061.8424390909. The cubic root of 16498564 is about 254.5747828143.

The spelling of 16498564 in words is "sixteen million, four hundred ninety-eight thousand, five hundred sixty-four".