16563474072 has 24 divisors (see below), whose sum is σ = 44859409140. Its totient is φ = 5521158000.

The previous prime is 16563474071. The next prime is 16563474073. The reversal of 16563474072 is 27047436561.

16563474072 is a `hidden beast` number, since 1 + 6 + 5 + 634 + 7 + 4 + 0 + 7 + 2 = 666.

16563474072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16563474071) and next prime (16563474073).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×16563474072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16563474071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115024054 + ... + 115024197.

Almost surely, 2^16563474072 is an apocalyptic number.

16563474072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16563474072 is an abundant number, since it is smaller than the sum of its proper divisors (28295935068).

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

16563474072 is a wasteful number, since it uses less digits than its factorization.

16563474072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230048263 (or 230048256 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 16563474072 in words is "sixteen billion, five hundred sixty-three million, four hundred seventy-four thousand, seventy-two".