16463574720 has 252 divisors, whose sum is σ = 57558614880. Its totient is φ = 4318599168.

The previous prime is 16463574719. The next prime is 16463574749. The reversal of 16463574720 is 2747536461.

16463574720 is a `hidden beast` number, since 1 + 6 + 4 + 6 + 3 + 574 + 72 + 0 = 666.

16463574720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16463574720² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 61202746 + ... + 61203014.

Almost surely, 2^16463574720 is an apocalyptic number.

16463574720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16463574720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28779307440).

16463574720 is an abundant number, since it is smaller than the sum of its proper divisors (41095040160).

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

16463574720 is an equidigital number, since it uses as much as digits as its factorization.

16463574720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 358 counting only the distinct ones).

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

The spelling of 16463574720 in words is "sixteen billion, four hundred sixty-three million, five hundred seventy-four thousand, seven hundred twenty".