16563348 has 36 divisors (see below), whose sum is σ = 42663348. Its totient is φ = 5416320.

The previous prime is 16563347. The next prime is 16563353. The reversal of 16563348 is 84336561.

16563348 is a `hidden beast` number, since 16 + 5 + 633 + 4 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12830724 + 3732624 = 3582^2 + 1932^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16563347) 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, 2433 + ... + 6248.

It is an arithmetic number, because the mean of its divisors is an integer number (1185093).

Almost surely, 2^16563348 is an apocalyptic number.

16563348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16563348 is an abundant number, since it is smaller than the sum of its proper divisors (26100000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16563348 is a wasteful number, since it uses less digits than its factorization.

16563348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744 (or 8739 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 16563348 is about 4069.8093321432. The cubic root of 16563348 is about 254.9075558794.

The spelling of 16563348 in words is "sixteen million, five hundred sixty-three thousand, three hundred forty-eight".